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75A66725-2001 — NUT,PLAIN,BARREL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

75A66725-2001: NUT,PLAIN,BARREL.

The NUT,PLAIN,BARREL is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: PLAIN BARREL, nut_length: 0.440 INCHES NOMINAL IN, nut_diameter: 0.500 INCHES NOMINAL IN, thread_class: 2B, barrel_height: 0.300 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-175-3704, 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
75A66725-2001
NSN: 5310-01-175-3704
FSC: 5310 — Nuts and Washers
CAGE: K1987 — BAE SYSTEMS PLC (GBR)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_stylePLAIN BARREL
nut_length0.440 INCHES NOMINAL IN
nut_diameter0.500 INCHES NOMINAL IN
thread_class2B
barrel_height0.300 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.250 INCHES IN
counterbore_diameter0.281 INCHES NOMINAL NUT IN
nut_counterbore_depth0.100 INCHES NOMINAL NUT IN
NSN5310-01-175-3704
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 75A66725-2001 · 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
•
NUT LENGTH: 0.440 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: S26-13,FSCM K0289 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
MATERIAL DOCUMENT AND CLASSIFICATION: S.143,FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
NUT COUNTERBORE DEPTH: 0.100 INCHES NOMINAL NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NUT LENGTH0.440 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONS26-13,FSCM K0289 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATIONS.143,FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.100 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER0.500 INCHES NOMINAL IN
COUNTERBORE DIAMETER0.281 INCHES NOMINAL NUT IN
SURFACE TREATMENTPASSIVATE OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
75A667252-2001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 75A66725-2001?
75A66725-2001 is a NUT,PLAIN,BARREL.
What parts can replace 75A66725-2001?
There is 1 known substitute for 75A66725-2001: 75A667252-2001. Substitute compatibility should be verified for your specific system.
What is the NSN for 75A66725-2001?
75A66725-2001 is cataloged in the U.S. Government catalog under NSN 5310-01-175-3704. 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.