PartsTable TECHNICAL DATA SHEET

NSN 5310-01-421-9440Government record, cited

Washer, Spring Tension5310-01-421-9440

NSN 5310-01-421-9440 · NIIN 014219440 · Part number WSP-124

Mobile Energy Products, Inc. Dba Electro Energy · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 50120

Government record, cited

NSN 5310-01-421-9440 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-421-9440. Manufacturer of record part number: WSP-124.

Also searched as 5310-01-421-9440 · 5310014219440 · NIIN 014219440 · 01-421-9440 · FSC 5310 Nuts and Washers · CAGE 50120 · WSP-124

Nearby stock numbers ← 5310-01-421-9437 Nut, Self-Locking, Hexagon · 5310-01-421-9448 Washer, Flat →

5310-01-421-9440 — Nuts and Washers

Features

Washer,spring Tension — FSC 5310
Outside Diameter: 0.621 INCHES NOMINAL IN
Material: STEEL COMP 410 OVERALL
Hole Diameter: 0.312 INCHES NOMINAL IN
1 manufacturer part number on file
Manufacturer of record: Mobile Energy Products, Inc. Dba Electro Energy

Identification

NSN: 5310-01-421-9440
NIIN: 014219440
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: WSP-124
Manufacturer: Mobile Energy Products, Inc. Dba Electro Energy

General Description

The Washer,spring Tension, cataloged under National Stock Number 5310-01-421-9440, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mobile Energy Products, Inc. Dba Electro Energy. Government technical data includes 3 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-421-9440
Primary Part Number	WSP-124
Item Name	Washer,spring Tension
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Mobile Energy Products, Inc. Dba Electro Energy
Status	ACTIVE
Outside Diameter	0.621 INCHES NOMINAL IN
Material	STEEL COMP 410 OVERALL
Hole Diameter	0.312 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

Cross-Reference Index

Part Number	Manufacturer
WSP-124 PRIMARY	Mobile Energy Products, Inc. Dba Electro Energy (USA)

No interchangeability data on file.

Other items in FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-000-0040

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-421-9440?

NSN 5310-01-421-9440 is a Washer,spring Tension, manufactured by Mobile Energy Products, Inc. Dba Electro Energy, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-421-9440?

NSN 5310-01-421-9440 has 1 manufacturer part number on file: WSP-124 (Mobile Energy Products, Inc. Dba Electro Energy).

What are the specifications of WSP-124?

Key specifications for WSP-124: Outside Diameter: 0.621 INCHES NOMINAL IN; Material: STEEL COMP 410 OVERALL; Hole Diameter: 0.312 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-421-9440 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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