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704-5940676 PC — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

704-5940676 PC: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 NUT, nut_style: HEXAGON, nut_height: 0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-006-2250, 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
704-5940676 PC
NSN: 5310-00-006-2250
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 NUT
nut_styleHEXAGON
nut_height0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
countersink_angle88.0 DEGREES NOMINAL NUT
width_across_flats1.052 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-00-006-2250
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 704-5940676 PC · 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: 1.052 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.052 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN
BEARING SURFACE FINISH125.0 MICROINCHES
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
SUBSTITUTES & CROSS-REFERENCES 9
1504-50 PIECE 7Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS17828-120Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
751-6402402 ITEM 9Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS17828EReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
125-2143986 PIEReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS17828-12CReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 704-5940676 PC?
704-5940676 PC is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 704-5940676 PC?
There are 9 known substitutes for 704-5940676 PC: 1504-50 PIECE 7, MS17828-120, 751-6402402 ITEM 9 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 704-5940676 PC?
704-5940676 PC is cataloged in the U.S. Government catalog under NSN 5310-00-006-2250. 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.