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451083 — PACKING,PREFORMED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

451083: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, rim_surface_width: 0.156 INCHES NOMINAL IN, peripheral_diameter: 0.570 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN, center_hole_diameter: 0.299 INCHES MINIMUM AND 0.319 INCHES MAXIMUM IN, cross-sectional_height: 0.275 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN, cross-sectional_shape_style: SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-045-1083, 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
451083
NSN: 5310-00-045-1083
NIINs: 000451083, 002500691
FSC: 5310 — Nuts and Washers
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
rim_surface_width0.156 INCHES NOMINAL IN
peripheral_diameter0.570 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN
center_hole_diameter0.299 INCHES MINIMUM AND 0.319 INCHES MAXIMUM IN
cross-sectional_height0.275 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
cross-sectional_shape_styleSPECIAL
NSN5310-00-045-1083
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 451083 · 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: 1.062 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
LOCKING FEATURE: FREE-RUNNING ALL METAL DESIGN
•
NUT HEIGHT: 0.375 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.062 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
LOCKING FEATUREFREE-RUNNING ALL METAL DESIGN
NUT HEIGHT0.375 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH16
SUBSTITUTES & CROSS-REFERENCES 2
5310000451083Reference document
Same NSN cross-reference
Reference document — Informative reference only
145038Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 451083?
451083 is a PACKING,PREFORMED.
What parts can replace 451083?
There are 2 known substitutes for 451083: 5310000451083, 145038. Substitute compatibility should be verified for your specific system.
What is the NSN for 451083?
451083 is cataloged in the U.S. Government catalog under NSN 5310-00-045-1083. 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.