ST3M721C5M1 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

ST3M721C5M1: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: PLATE, nut_height: 0.329 INCHES MAXIMUM IN, nut_length: 1.094 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-066-9396, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

ST3M721C5M1

NSN: 5310-01-066-9396
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
nut_style	PLATE
nut_height	0.329 INCHES MAXIMUM IN
nut_length	1.094 INCHES MAXIMUM IN
lubrication	DRY FILM LUBRICANT
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
special_features	IDENTIFICATION COLOR YELLOW
thread_direction	RIGHT-HAND
features_provided	FLOATING NUT
nominal_thread_size	0.312 INCHES IN
NSN	5310-01-066-9396

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

NUT LENGTH: 1.094 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

MOUNTING HOLE DIAMETER: 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN

•

NUT COUNTERBORE DEPTH: 0.062 INCHES MINIMUM NUT IN

•

FEATURES PROVIDED: FLOATING NUT

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
NUT LENGTH	1.094 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MOUNTING HOLE ARRANGEMENT STYLE	2 HOLES
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER	0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
NUT COUNTERBORE DEPTH	0.062 INCHES MINIMUM NUT IN
FEATURES PROVIDED	FLOATING NUT
THREAD DIRECTION	RIGHT-HAND
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH	0.705 INCHES MINIMUM AND 0.709 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES 4

NS202183-5-1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

10122072Reference document

Same NSN cross-reference

Reference document — Informative reference only

F12092-1-5Reference document

Same NSN cross-reference

Reference document — Secondary reference

F50403-5-1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is ST3M721C5M1?

ST3M721C5M1 is a NUT,SELF-LOCKING,PLATE.

What parts can replace ST3M721C5M1?

There are 4 known substitutes for ST3M721C5M1: NS202183-5-1, 10122072, F12092-1-5 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for ST3M721C5M1?

ST3M721C5M1 is cataloged in the U.S. Government catalog under NSN 5310-01-066-9396. This indicates validated use in U.S. government and defense supply chains.

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