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2156906-6 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2156906-6: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 NUT, nut_style: CLINCH, nut_height: 0.355 INCHES NOMINAL IN, lubrication: SOLUBLE LUBRICANT, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, pilot_length: 0.105 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-003-6737, 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
2156906-6
NSN: 5310-00-003-6737
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 303 NUT
nut_styleCLINCH
nut_height0.355 INCHES NOMINAL IN
lubricationSOLUBLE LUBRICANT
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
pilot_length0.105 INCHES NOMINAL IN
thread_class3B
thread_seriesUNJC
pilot_diameter0.264 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE NUT
NSN5310-00-003-6737
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2156906-6 · 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
•
LUBRICATION: SOLUBLE LUBRICANT
•
WIDTH ACROSS FLATS: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT
•
THREAD SERIES: UNJC
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD 2ND MATERIAL RESPONSE NUT
•
NUT COUNTERBORE DEPTH: 0.105 INCHES NOMINAL NUT IN
TECHNICAL CHARACTERISTICS
LUBRICATIONSOLUBLE LUBRICANT
WIDTH ACROSS FLATS0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIESUNJC
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 2ND MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693,COMP A,TYPE 1 MIL SPEC 1ST MATERIAL RESPONSE LOCKING INSERT
NUT COUNTERBORE DEPTH0.105 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE10.000 INCHES IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-001-5340 5310-00-004-4584 5310-00-004-5157 5310-00-004-7045 5310-00-004-7046 5310-00-005-4375 5310-00-006-8067 5310-00-007-2907
SUBSTITUTES & CROSS-REFERENCES 6
79NC3-04Reference document
Same NSN cross-reference
Reference document — Secondary reference
L79NC3-04Reference document
Same NSN cross-reference
Reference document — Secondary reference
L79NC3-1024Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2312524-3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2156909Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
203-1163P14Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 2156906-6?
2156906-6 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 2156906-6?
There are 6 known substitutes for 2156906-6: 79NC3-04, L79NC3-04, L79NC3-1024 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2156906-6?
2156906-6 is cataloged in the U.S. Government catalog under NSN 5310-00-003-6737. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.