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Technical Data Sheet
PartsTable / COMPONENT / 2100-6310-001
2100-6310-001 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include special_features: DO NOT DUPE TO NSN 5310-00-903-5966; THIS NSN IS FOR PEARL HARBOR USE ONLY; THIS IS A NON-STANDARD UNIT-OF-ISSUE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-903-5966, 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
2100-6310-001
NSN: 5310-00-903-5966
FSC: 5310
CAGE: 06032 — ANTENNA PRODUCTS CORPORATION DBA ANTENNA PRODUCTS CORP (USA)
SPECIFICATIONS
special_featuresDO NOT DUPE TO NSN 5310-00-903-5966; THIS NSN IS FOR PEARL HARBOR USE ONLY; THIS IS A NON-STANDARD UNIT-OF-ISSUE
NSN5310-00-903-5966
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2100-6310-001 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH ACROSS FLATS: 0.4280 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 20
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 440C OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
END ITEM IDENTIFICATIONMRAP - COUGAR AMBULANCE; RG-33 AUV; MRAP BUFFALO MK2A2; MRAP - COUGAR TOW; MRAP - COUGAR SABR/TOW; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.4280 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH20
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIALSTEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 440C OVERALL
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,AISI 303 OR SAE 30303 FED STD 1ST MATERIAL RESPONSE OR FED STD 66,AISI 304 OR SAE 30304 FED STD 2ND MATERIAL RESPONSE OR AISI 14140C FED STD 3RD MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
24419Interchangeable
interchangeable cross-reference
interchangeable
30565Interchangeable
interchangeable cross-reference
interchangeable
22810Interchangeable
interchangeable cross-reference
interchangeable
112935Interchangeable
Setscrew 6-40
interchangeable
MS35690-410Interchangeable
interchangeable cross-reference
interchangeable
FFN836TYPE2STYLE1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2100-6310-001?
2100-6310-001 is a NUT,PLAIN,HEXAGON.
What parts can replace 2100-6310-001?
There are 19 known substitutes for 2100-6310-001: 24419, 30565, 22810 and 16 more. Substitute compatibility should be verified for your specific system.
Is 2100-6310-001 still available?
2100-6310-001 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026