PartsTable TECHNICAL DATA SHEET

NSN 5310-01-285-4751Government record, cited

Washer, Shouldered5310-01-285-4751

NSN 5310-01-285-4751 · NIIN 012854751

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-01-285-4751 · 5310012854751 · NIIN 012854751 · 01-285-4751 · FSC 5310 Nuts and Washers · MIL-W-45595/1 · M45595/1-11

Nearby stock numbers ← 5310-01-285-4554 Washer, Flat · 5310-01-285-4764 →

5310-01-285-4751 — Nuts and Washers

Features

Washer,shouldered — FSC 5310
Shoulder Height: 0.024 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
Style Designator: SHOULDERED
Material Document and Classification: ASTM D4066 ASSN STD 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 2ND MATERIAL RESPONSE OVERALL
Outside Diameter: 0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
Material Thickness: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
Shoulder Diameter: 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Material: PLASTIC POLYAMIDE NYLON OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL

Identification

NSN: 5310-01-285-4751
NIIN: 012854751
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-285-4751, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-285-4751
Item Name	Washer,shouldered
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Shoulder Height	0.024 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
Style Designator	SHOULDERED
Material Document and Classification	ASTM D4066 ASSN STD 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 2ND MATERIAL RESPONSE OVERALL
Outside Diameter	0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
Material Thickness	0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
Shoulder Diameter	0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Material	PLASTIC POLYAMIDE NYLON OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
Hole Diameter	0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 10

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5310-01-304-4434 POSSIBLE MATCH

WASHER,SHOULDERED

Possible match (shared part number)

5365-01-305-5914 POSSIBLE MATCH

SPACER,SLEEVE

Possible match (shared part number)

5310-01-306-8572 POSSIBLE MATCH

WASHER,SHOULDERED

Possible match (shared part number)

5310-01-307-4970 POSSIBLE MATCH

WASHER,SHOULDERED

Possible match (shared part number)

5365-01-309-3574 POSSIBLE MATCH

SPACER,SLEEVE

Possible match (shared part number)

5310-01-311-1413M45595/1-07 POSSIBLE MATCH

WASHER,SHOULDERED

Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use

5310-01-314-6722 POSSIBLE MATCH

WASHER,SHOULDERED

Possible match (shared part number)

5365-01-319-4811 POSSIBLE MATCH

SPACER,SLEEVE

Possible match (shared part number)

5365-01-322-9530 POSSIBLE MATCH

SPACER,SLEEVE

Possible match (shared part number)

5310-01-327-6348M45595/1-01 POSSIBLE MATCH

WASHER,SHOULDERED

Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
MIL-W-45595/1	4/1 Identification reference U.S. Government activity
M45595/1-11	2/2 Government specification standardization U.S. Government activity

Related Parts

5310-01-304-4434POSSIBLE MATCH

WASHER,SHOULDERED

5365-01-305-5914POSSIBLE MATCH

SPACER,SLEEVE

5310-01-306-8572POSSIBLE MATCH

WASHER,SHOULDERED

5310-01-307-4970POSSIBLE MATCH

WASHER,SHOULDERED

5365-01-309-3574POSSIBLE MATCH

SPACER,SLEEVE

5310-01-311-1413POSSIBLE MATCH

WASHER,SHOULDERED

M45595/1-07

5310-01-314-6722POSSIBLE MATCH

WASHER,SHOULDERED

5365-01-319-4811POSSIBLE MATCH

SPACER,SLEEVE

5365-01-322-9530POSSIBLE MATCH

SPACER,SLEEVE

5310-01-327-6348POSSIBLE MATCH

WASHER,SHOULDERED

M45595/1-01

Frequently Asked Questions

What is NSN 5310-01-285-4751?

NSN 5310-01-285-4751 is a Washer,shouldered, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-01-285-4751?

10 possible matches (shared part number, not a government interchangeability claim): 5310-01-304-4434, 5365-01-305-5914, 5310-01-306-8572. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-01-285-4751?

Key specifications for 5310-01-285-4751: Shoulder Height: 0.024 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Material Document and Classification: ASTM D4066 ASSN STD 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 2ND MATERIAL RESPONSE OVERALL; Outside Diameter: 0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-285-4751 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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