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3009921 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3009921: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include end_item_identification: MH-139A GREYWOLF A, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-024-1275, 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
3009921
NSN: 5310-01-024-1275
NIINs: 010241275, 017140368
FSC: 5310 — Nuts and Washers
CAGE: 85639 — KLINCHER LOCKNUT CORP DBA DUAL MACHINE CORP. (USA)
SPECIFICATIONS
end_item_identificationMH-139A GREYWOLF A
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN5310-01-024-1275
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3009921 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD PITCH DIAMETERS: +0.1717 TO 0.1736 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT HEIGHT: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD PITCH DIAMETERS+0.1717 TO 0.1736 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH32
SUBSTITUTES & CROSS-REFERENCES 3
968.20.12.135Reference document
Same NSN cross-reference
Reference document — Secondary reference
5310PL0135814Reference document
Same NSN cross-reference
Reference document — Informative reference only
10121985Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 3009921?
3009921 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 3009921?
There are 3 known substitutes for 3009921: 968.20.12.135, 5310PL0135814, 10121985. Substitute compatibility should be verified for your specific system.
What is the NSN for 3009921?
3009921 is cataloged in the U.S. Government catalog under NSN 5310-01-024-1275. This indicates validated use in U.S. government and defense supply chains.
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