PartsTable TECHNICAL DATA SHEET

NSN 5310-01-522-1238Government record, cited

Washer, Lock5310-01-522-1238

NSN 5310-01-522-1238 · NIIN 015221238 · Part number 803-6397304-XX-29

Naval Sea Systems Command · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 53711

Government record, cited

NSN 5310-01-522-1238 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-522-1238. Manufacturer of record part number: 803-6397304-XX-29.

Also searched as 5310-01-522-1238 · 5310015221238 · NIIN 015221238 · 01-522-1238 · FSC 5310 Nuts and Washers · CAGE 53711 · 803-6397304-XX-29 · 6397304

Nearby stock numbers ← 5310-01-522-1128 Nut, Plain, Round · 5310-01-522-1247 Nut Spacer, Plate →

5310-01-522-1238 — Nuts and Washers

Features

Washer,lock — FSC 5310
Style Designator: FLAT INTERNAL TEETH
Outside Diameter: 0.867 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
Material Thickness: 0.022 INCHES NOMINAL IN
Material: STEEL CORROSION RESISTING OVERALL
Hole Diameter: 0.640 INCHES MINIMUM AND 0.659 INCHES MAXIMUM IN
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 5310-01-522-1238
NIIN: 015221238
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 803-6397304-XX-29
Manufacturer: Naval Sea Systems Command

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-522-1238, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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	5310-01-522-1238
Primary Part Number	803-6397304-XX-29
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
Style Designator	FLAT INTERNAL TEETH
Outside Diameter	0.867 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
Material Thickness	0.022 INCHES NOMINAL IN
Material	STEEL CORROSION RESISTING OVERALL
Hole Diameter	0.640 INCHES MINIMUM AND 0.659 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 7

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

4820-01-523-9548803-6397304-2A-05,21 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Naval Sea Systems Command

4820-01-523-9662803-6397304-2B-05,21 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Naval Sea Systems Command

4820-01-546-9207 POSSIBLE MATCH

VALVE,GLOBE

Possible match (shared part number)

4820-01-546-9214 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

4820-01-547-6664 POSSIBLE MATCH

RETAINER,DISK,VALVE

Possible match (shared part number)

4820-01-618-6787803-6397304-XX-32 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Naval Sea Systems Command

5310-01-725-1767803-6397304-XX-06 POSSIBLE MATCH

NUT,PLAIN,CAP

Possible match (shared part number)Naval Sea Systems Command

Cross-Reference Index

Part Number	Manufacturer
803-6397304-XX-29 PRIMARY	Naval Sea Systems Command (USA)

Reference documents

Reference	Meaning
6397304	D/9 Drawing number reference only Naval Sea Systems Command

Related Parts

4820-01-523-9548POSSIBLE MATCH

STEM,FLUID VALVE

803-6397304-2A-05,21

4820-01-523-9662POSSIBLE MATCH

DISK,VALVE

803-6397304-2B-05,21

4820-01-546-9207POSSIBLE MATCH

VALVE,GLOBE

4820-01-546-9214POSSIBLE MATCH

STEM,FLUID VALVE

4820-01-547-6664POSSIBLE MATCH

RETAINER,DISK,VALVE

4820-01-618-6787POSSIBLE MATCH

DISK,VALVE

803-6397304-XX-32

5310-01-725-1767POSSIBLE MATCH

NUT,PLAIN,CAP

803-6397304-XX-06

Frequently Asked Questions

What is NSN 5310-01-522-1238?

NSN 5310-01-522-1238 is a Washer,lock, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-522-1238?

NSN 5310-01-522-1238 has 1 manufacturer part number on file: 803-6397304-XX-29 (Naval Sea Systems Command).

What NSN replaces 5310-01-522-1238?

7 possible matches (shared part number, not a government interchangeability claim): 4820-01-523-9548, 4820-01-523-9662, 4820-01-546-9207. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-6397304-XX-29?

Key specifications for 803-6397304-XX-29: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.867 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN; Material Thickness: 0.022 INCHES NOMINAL IN; End Item Identification: HEATER. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-522-1238 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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