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C005281 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

C005281: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303S OR STEEL COMP 303SE OVERALL, nut_style: SLEEVE, nut_length: 0.080 INCHES NOMINAL IN, nut_diameter: 0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-377-0941, 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
C005281
NSN: 5310-01-377-0941
FSC: 5310 — Nuts and Washers
CAGE: 60854 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN INFORMATION SYSTEMS & GLOBAL SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 303S OR STEEL COMP 303SE OVERALL
nut_styleSLEEVE
nut_length0.080 INCHES NOMINAL IN
nut_diameter0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
flange_thickness0.080 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.164 INCHES IN
cross-sectional_shapeHEXAGONAL NUT
thread_quantity_per_inch32
NSN5310-01-377-0941
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C005281 · 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
•
FLANGE WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
NUT LENGTH: 0.080 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.080 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.164 INCHES IN
•
NUT DIAMETER: 0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
NUT LENGTH0.080 INCHES NOMINAL IN
FLANGE THICKNESS0.080 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.164 INCHES IN
NUT DIAMETER0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEHEXAGONAL NUT
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
C005281-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 C005281?
C005281 is a NUT,SLEEVE.
What parts can replace C005281?
There is 1 known substitute for C005281: C005281-01. Substitute compatibility should be verified for your specific system.
What is the NSN for C005281?
C005281 is cataloged in the U.S. Government catalog under NSN 5310-01-377-0941. 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.