Washer, Lock5310-00-520-1522

NSN 5310-00-520-1522 · NIIN 005201522

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

Government record, cited

Also searched as 5310-00-520-1522 · 5310005201522 · NIIN 005201522 · 00-520-1522 · FSC 5310 Nuts and Washers · NASM35338-44 · 2K1

Nearby stock numbers ← 5310-00-520-1521 Nut, Plain, Hexagon · 5310-00-520-1598 →

5310-00-520-1522 — Nuts and Washers

Features

Washer,lock — FSC 5310
Style Designator: SPLIT HELICAL-RIGHT HAND
Outside Diameter: 0.484 INCHES NOMINAL IN
Material Thickness: 0.047 INCHES NOMINAL IN
Material: STEEL OVERALL
Hole Diameter: 0.255 INCHES NOMINAL IN

Identification

NSN: 5310-00-520-1522
NIIN: 005201522
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,lock, cataloged under National Stock Number 5310-00-520-1522, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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	5310-00-520-1522
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Style Designator	SPLIT HELICAL-RIGHT HAND
Outside Diameter	0.484 INCHES NOMINAL IN
Material Thickness	0.047 INCHES NOMINAL IN
Material	STEEL OVERALL
Hole Diameter	0.255 INCHES NOMINAL 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 2

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

5915-01-064-1145524687-0002 POSSIBLE MATCH

FILTER,RADIO FREQUENCY INTERFERE

Possible match (shared part number)Sypris Electronics, Llc

5310-01-523-2977NASM35338-44 POSSIBLE MATCH

WASHER,LOCK

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
NASM35338-44	3/2 Design control — primary reference U.S. Government activity
2K1	3/9 Design control — primary reference Vortox Company

Related Parts

5915-01-064-1145POSSIBLE MATCH

FILTER,RADIO FREQUENCY INTERFERE

524687-0002

5310-01-523-2977POSSIBLE MATCH

WASHER,LOCK

NASM35338-44

Frequently Asked Questions

What is NSN 5310-00-520-1522?

NSN 5310-00-520-1522 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-00-520-1522?

2 possible matches (shared part number, not a government interchangeability claim): 5915-01-064-1145, 5310-01-523-2977. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-00-520-1522?

Key specifications for 5310-00-520-1522: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.484 INCHES NOMINAL IN; Material Thickness: 0.047 INCHES NOMINAL IN; Material: STEEL OVERALL. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-520-1522 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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