Mil. Spec. Primers | McMaster-Carr

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Warning: Products have one, but not necessarily all, of the selected characteristics.

	Container Type Container Type


Aerosol Can	Can

Spray Bottle	Brush-Top Bottle

Bottle

	Type Type

Primer

Threadlocker

Retaining Compound

	Manufacturer Model Number Manufacturer Model Number

7471

7649

	Manufacturer Manufacturer

Loctite®

	For Use On For Use On

	Color Color

	Red		Green
	Purple		Yellow
	Amber		Blue
	Brown		Orange

	Drying Time Drying Time

30 sec.

1 min.

	Consistency Consistency

Thin Liquid

Thick Liquid

	Container Size Container Size

	Viscosity Viscosity

	Clarity Clarity

Semi-Clear

Opaque

	Locking Strength Locking Strength

High

Medium

Low

	For Use With For Use With

Beverage

Food

Drinking Water

	Removal Method Removal Method

Hand Tool

Hand Tool and Heat

	Maximum Gap Size Filled Maximum Gap Size Filled

0.004"

0.005"

0.006"

	Maximum Temperature Maximum Temperature

250° F or greater

	Begins to Harden Begins to Harden

	Formulation Formulation

Acrylic

	Breakaway Torque Breakaway Torque

	Mixing Required Mixing Required

	For Maximum Thread Diameter For Maximum Thread Diameter

1/4"

3/4"

	Shear Strength Shear Strength

2,000 lbs./sq. in.

3,000 lbs./sq. in.

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35 Products

About Structural Adhesives

To speed cure time on coated fasteners, aluminum, stainless steel, or titanium, apply these primers before using threadlocker or retaining compound. They also work with no-mix acrylic adhesives.

Primers in brush-top bottles also include a spray head for easy dispensing.

	Container
Mfr. Model No.	Size	Type	Drying Time	Consistency	Viscosity, cP	Color	Environment	Specifications Met		Each
Loctite® Primers
7471	1.75 oz.	Brush-Top Bottle, Spray Bottle	30 sec.	Thin Liquid	2	Amber	__	MIL-S-22473E	00000000	000000
7471	4.5 oz.	Aerosol Can	30 sec.	Thin Liquid	2	Amber	__	MIL-S-22473E	00000000	00000
7471	1 gal.	Can	30 sec.	Thin Liquid	2	Amber	__	MIL-S-22473E	00000000	000000
7649	0.88 oz.	Aerosol Can	30 sec.	Thin Liquid	2	Green	Food Industry	MIL-S-22473E, NSF/ANSI 61	0000000	00000
7649	1.75 oz.	Brush-Top Bottle, Spray Bottle	30 sec.	Thin Liquid	2	Green	Food Industry	MIL-S-22473E, NSF/ANSI 61	0000000	00000
7649	4.5 oz.	Aerosol Can	30 sec.	Thin Liquid	2	Green	Food Industry	MIL-S-22473E, NSF/ANSI 61	0000000	00000
7649	1 gal.	Can	30 sec.	Thin Liquid	2	Green	Food Industry	MIL-S-22473E, NSF/ANSI 61	0000000	000000
Primers
__	4.25 oz.	Aerosol Can	1 min.	Thin Liquid	Not Rated	Green	__	MIL-S-22473E	00000000	00000

Threadlockers

Prevent threaded fasteners from loosening due to shock and vibration. These threadlockers begin to harden once coated surfaces are threaded together and exposure to air is blocked. Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes; and cadmium and zinc coatings.

Threadlockers with low locking strength adjust easily with a hand tool.

Threadlockers with medium locking strength require a hand tool to unthread.

Threadlockers with high locking strength require both heat and a hand tool to unthread.

087 is for coarse threads.

Container
Size, oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color	Specifications Met		Each
Low Locking Strength
Threadlockers
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	20	40	Brown	ASTM D5363, MIL-S-22473 Grade H	00000000	000000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	20	65	Purple	ASTM D5363, MIL-S-22473 Grade E	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	170	15	Yellow	ASTM D5363, MIL-S-22473 Grade JV	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	170	40	Brown	ASTM D5363, MIL-S-22473 Grade HV	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	170	65	Purple	ASTM D5363, MIL-S-22473 Grade EV	00000000	00000
Medium Locking Strength
Threadlockers
0.34	Bottle	30 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	120	100	Blue	ASTM D5363, MIL-S-46163 Grade J Type I	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	120	100	Blue	ASTM D5363, MIL-S-46163 Grade J Type I	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	20	125	Blue	ASTM D5363, MIL-S-22473 Grade C	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	150	110	Yellow	ASTM D5363, MIL-S-22473 Grade B	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	170	125	Blue	ASTM D5363, MIL-S-22473 Grade CV	00000000	00000
8.45	Bottle	30 min.	24 hrs.	-65° to 300°	3/4"	Thin Liquid	120	100	Blue	ASTM D5363, MIL-S-46163 Grade J Type I	00000000	000000
High Locking Strength
Threadlockers
0.34	Bottle	20 min.	24 hrs.	-65° to 300°	3/4"	Thick Liquid	3,550	200	Red	ASTM D5363, MIL-S-46163 Grade O Type II	00000000	00000
0.34	Bottle	60 min.	24 hrs.	-65° to 300°	2"	Thick Liquid	7,000	250	Red	ASTM D5363, MIL-S-46163 Grade L Type I	00000000	00000
1.69	Bottle	20 min.	24 hrs.	-65° to 300°	3/4"	Thick Liquid	3,550	200	Red	ASTM D5363, MIL-S-46163 Grade O Type II	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	20	185	Green	ASTM D5363, MIL-S-22473 Grade AA	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	20	185	Red	ASTM D5363, MIL-S-22473 Grade A	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	60	170	Orange	ASTM D5363, MIL-S-22473 Grade D	00000000	00000
1.69	Bottle	30 min.	24 hrs.	-65° to 350°	__	Thin Liquid	170	185	Red	ASTM D5363, MIL-S-22473 Grade AV	00000000	00000
1.69	Bottle	60 min.	24 hrs.	-65° to 300°	2"	Thick Liquid	7,000	250	Red	ASTM D5363, MIL-S-46163 Grade L Type I	00000000	00000
8.45	Bottle	20 min.	24 hrs.	-65° to 300°	3/4"	Thick Liquid	3,550	200	Red	ASTM D5363, MIL-S-46163 Grade O Type II	00000000	000000
8.45	Bottle	60 min.	24 hrs.	-65° to 300°	2"	Thick Liquid	7,000	250	Red	ASTM D5363, MIL-S-46163 Grade L Type I	00000000	000000

Adjustable Threadlockers

These threadlockers give a secure hold, but can be easily adjusted with hand tools. They can be removed without damaging countersunk fasteners, set screws, and other small fasteners. These threadlockers begin to harden once coated surfaces are threaded together and exposure to air is blocked.

Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes, and cadmium and zinc coatings.

Container
Size, oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color	Specifications Met		Each
Low Locking Strength
Threadlockers
1.69	Bottle	20 min.	24 hrs.	-65° to 300°	1/4"	Thick Liquid	1,200	30	Purple	ASTM D5363, MIL-S-46163 Grade M Type II	00000000	000000

Threadlockers for Drinking Water

Threadlockers begin to harden once coated surfaces are threaded together and exposure to air is blocked.

Container
Size, oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color	Specifications Met		Each
Medium Locking Strength
Threadlockers
1.69	Bottle	10 min.	24 hrs.	-65° to 350°	3/4"	Thick Liquid	1,200	150	Blue	ASTM D5363, MIL-S-46163 Grade N Type II, NSF/ANSI 61	00000000	000000

Heavy Duty Threadlockers

To withstand demanding, high-vibration applications such as motor and pump housings, these threadlockers have high breakaway torque. They begin to harden once coated surfaces are threaded together and exposure to air is blocked.

Container
Size, oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color	Specifications Met		Each
High Locking Strength
Threadlockers
1.69 oz.	Bottle	60 min.	24 hrs.	-65° to 350°	1"	Thin Liquid	520	300	Red	ASTM D5363, MIL-S-46163 Grade K Type I	00000000	000000

Wicking Threadlockers

Apply these threadlockers on fasteners that are already installed—their thin consistency allows them to flow into small gaps. They begin to harden once coated surfaces are threaded together and exposure to air is blocked.

Container
Size, oz.	Type	Begins to Harden	Reaches Full Strength	Temp. Range, °F	For Max. Thread Dia.	Consistency	Viscosity, cP	Breakaway Torque, in.-lbs.	Color	Specifications Met		Each
High Locking Strength
Threadlockers
1.69	Bottle	10 min.	24 hrs.	-65° to 350°	1/4"	Thin Liquid	20	100	Green	ASTM D5363, MIL-S-46163 Grade R Type III	00000000	000000

Retaining Compounds for Close-Fitting Parts

Fill gaps up to 0.01" to secure unthreaded cylindrical metal parts such as shafts, bearings, and press-fit assemblies. These retaining compounds begin to harden once coated surfaces are pressed together, blocking exposure to air.

Container
Size, oz.	Type	Max. Gap Size Filled	Begins to Harden	Reaches Full Strength	Temp. Range, °F	Consistency	Viscosity, cP	Shear Strength, lbs./sq. in.	Color	Specifications Met		Each
High Locking Strength
Retaining Compounds
1.69	Bottle	0.005"	10 min.	24 hrs.	-65° to 350°	Thin Liquid	125	2,000	Green	ASTM D5363, MIL-R-46082 Type I	00000000	000000
1.69	Bottle	0.006"	20 min.	24 hrs.	-65° to 350°	Thin Liquid	600	3,000	Green	ASTM D5363, MIL-R-46082 Type II	00000000	00000

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