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3HS451 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3HS451: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL, nut_style: HEXAGON, nut_height: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-617-2007, 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
3HS451
NSN: 5310-01-617-2007
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL
nut_styleHEXAGON
nut_height0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch28
nondefinitive_spec/std_data2 TYPE AND 13 STYLE
material_document_and_classificationQQ-B-626,ALLOY360 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637,ALLOY 462 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-637,ALLOY 464 FED SPEC 3RD MATERIAL RESPONSE OVERALL
NSN5310-01-617-2007
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3HS451 · 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: 0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,ALLOY360 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637,ALLOY 462 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-637,ALLOY 464 FED SPEC 3RD MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 13 STYLE
•
NUT HEIGHT: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,ALLOY360 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637,ALLOY 462 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-637,ALLOY 464 FED SPEC 3RD MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 13 STYLE
NUT HEIGHT0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH28
SUBSTITUTES & CROSS-REFERENCES 1
MS35650-3255Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3HS451?
3HS451 is a NUT,PLAIN,HEXAGON.
What parts can replace 3HS451?
There is 1 known substitute for 3HS451: MS35650-3255. Substitute compatibility should be verified for your specific system.
What is the NSN for 3HS451?
3HS451 is cataloged in the U.S. Government catalog under NSN 5310-01-617-2007. 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.