PartsTable TECHNICAL DATA SHEET

NSN 5310-01-168-4268Government record, cited

Washer, Lock5310-01-168-4268

NSN 5310-01-168-4268 · NIIN 011684268

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

Government record, cited

Also searched as 5310-01-168-4268 · 5310011684268 · NIIN 011684268 · 01-168-4268 · FSC 5310 Nuts and Washers · 823976 · 823976 PC 26 · B-6658

Nearby stock numbers ← 5310-01-168-3942 Washer, Lock · 5310-01-168-4484 Nut, Plain, Extended Washer, Double →

5310-01-168-4268 — Nuts and Washers

Features

Washer,lock — FSC 5310
Material Document and Classification: QQ-S-00640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Material: STEEL OVERALL

Identification

NSN: 5310-01-168-4268
NIIN: 011684268
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-168-4268, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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	5310-01-168-4268
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Material Document and Classification	QQ-S-00640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Material	STEEL OVERALL

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 9

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

5330-01-168-4271 POSSIBLE MATCH

PACKING,PREFORMED

Possible match (shared part number)

5330-01-168-4272 POSSIBLE MATCH

PACKING,PREFORMED

Possible match (shared part number)

5330-01-168-4273 POSSIBLE MATCH

GASKET

Possible match (shared part number)

5360-01-168-4431 POSSIBLE MATCH

SPRING,HELICAL,COMPRESSION

Possible match (shared part number)

4320-01-184-4514C-823997 POSSIBLE MATCH

DRIVE SHAFT AND PISTON ROD ASSEM

Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South

4320-01-185-8176B-63264 POSSIBLE MATCH

UNIVERSAL LINK AND PIN ASSEMBLY

Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South

4320-01-200-6594 POSSIBLE MATCH

MOTOR,HYDRAULIC

Possible match (shared part number)

4320-01-219-1599829760 POSSIBLE MATCH

CYLINDER BLOCK,HYDRAULIC MOTOR-P

Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South

4320-01-219-6644823022 POSSIBLE MATCH

HEAD,HYDRAULIC MOTOR-PUMP

Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South

Cross-Reference Index

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

Reference documents

Reference	Meaning
823976	5/1 Secondary reference Eaton Aerospace, Llc Dba Jackson South
823976 PC 26	5/1 Secondary reference Eaton Aerospace, Llc Dba Jackson South
B-6658	3/1 Design control — primary reference Eaton Aerospace, Llc Dba Jackson South

Related Parts

5330-01-168-4271POSSIBLE MATCH

PACKING,PREFORMED

5330-01-168-4272POSSIBLE MATCH

PACKING,PREFORMED

5330-01-168-4273POSSIBLE MATCH

GASKET

5360-01-168-4431POSSIBLE MATCH

SPRING,HELICAL,COMPRESSION

4320-01-184-4514POSSIBLE MATCH

DRIVE SHAFT AND PISTON ROD ASSEM

C-823997

4320-01-185-8176POSSIBLE MATCH

UNIVERSAL LINK AND PIN ASSEMBLY

B-63264

4320-01-200-6594POSSIBLE MATCH

MOTOR,HYDRAULIC

4320-01-219-1599POSSIBLE MATCH

CYLINDER BLOCK,HYDRAULIC MOTOR-P

829760

4320-01-219-6644POSSIBLE MATCH

HEAD,HYDRAULIC MOTOR-PUMP

823022

Frequently Asked Questions

What is NSN 5310-01-168-4268?

NSN 5310-01-168-4268 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-01-168-4268?

9 possible matches (shared part number, not a government interchangeability claim): 5330-01-168-4271, 5330-01-168-4272, 5330-01-168-4273. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-01-168-4268?

Key specifications for 5310-01-168-4268: Material Document and Classification: QQ-S-00640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL OVERALL. 2 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-168-4268 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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