PartsTable TECHNICAL DATA SHEET

NSN 5310-01-255-5280Government record, cited

Nut, Plain, Hexagon5310-01-255-5280

NSN 5310-01-255-5280 · NIIN 012555280 · Part number F21NTE-083

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

Government record, cited

NSN 5310-01-255-5280 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-255-5280. Manufacturer of record part number: F21NTE-083.

Also searched as 5310-01-255-5280 · 5310012555280 · NIIN 012555280 · 01-255-5280 · FSC 5310 Nuts and Washers · CAGE 019L2 · F21NTE-083

Nearby stock numbers ← 5310-01-255-5205 · 5310-01-255-5281 Nut, Plain, Clinch →

5310-01-255-5280 — Nuts and Washers

Features

Nut,plain,hexagon — FSC 5310
Width Across Flats: 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Thread Series: UNJC
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.500 INCHES IN
Nut Height: 0.313 INCHES NOMINAL IN
Surface Treatment: ZINC OVERALL
Nut Style: HEXAGON

Identification

NSN: 5310-01-255-5280
NIIN: 012555280
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: F21NTE-083
Manufacturer: Esna, Llc

General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-255-5280, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-255-5280
Primary Part Number	F21NTE-083
Item Name	Nut,plain,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Esna, Llc
Status	ACTIVE
Width Across Flats	0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Thread Series	UNJC
Thread Direction	RIGHT-HAND
Nominal Thread Size	0.500 INCHES IN
Nut Height	0.313 INCHES NOMINAL IN
Surface Treatment	ZINC OVERALL
Nut Style	HEXAGON
Thread Class	3B
Thread Quantity Per Inch	13
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

Cross-Reference Index

Part Number	Manufacturer
F21NTE-083 PRIMARY	Esna, Llc (USA)

Reference documents

Reference	Meaning
F21NTE-083	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 5310-01-255-5280?

NSN 5310-01-255-5280 is a Nut,plain,hexagon, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-255-5280?

NSN 5310-01-255-5280 has 1 manufacturer part number on file: F21NTE-083 (Esna, Llc).

What are the specifications of F21NTE-083?

Key specifications for F21NTE-083: Width Across Flats: 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Thread Series: UNJC; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.500 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-255-5280 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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