PartsTable TECHNICAL DATA SHEET

NSN 5310-00-550-4371Government record, cited

Nut, Self-Locking, Hexagon5310-00-550-4371

NSN 5310-00-550-4371 · NIIN 005504371 · Part number MJ62

Esna, Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 019L2

Government record, cited

NSN 5310-00-550-4371 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-550-4371. Manufacturer of record part number: MJ62.

Also searched as 5310-00-550-4371 · 5310005504371 · NIIN 005504371 · 00-550-4371 · FSC 5310 Nuts and Washers · CAGE 019L2 · MJ62

Nearby stock numbers ← 5310-00-550-4368 · 5310-00-550-4372 Nut, Self-Locking, Hexagon →

5310-00-550-4371 — Nuts and Washers

Features

Nut,self-Locking,hexagon — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Esna, Llc

Identification

NSN: 5310-00-550-4371
NIIN: 005504371
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: MJ62
Manufacturer: Esna, Llc

General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-550-4371, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Nut,self-Locking,hexagon
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Esna, Llc (CAGE 019L2)

Technical Specifications

Parameter	Value
NSN	5310-00-550-4371
Primary Part Number	MJ62
Item Name	Nut,self-Locking,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Esna, Llc
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
MJ62 PRIMARY	Esna, Llc (USA)

Reference documents

Reference	Meaning
MJ62	5/9 Secondary reference Harvard Industries Inc

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 5310-00-550-4371?

NSN 5310-00-550-4371 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-00-550-4371?

NSN 5310-00-550-4371 has 1 manufacturer part number on file: MJ62 (Esna, Llc).

Is NSN 5310-00-550-4371 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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