PartsTable TECHNICAL DATA SHEET

NSN 5310-01-103-4263Government record, cited

Nut, Plain, Hexagon5310-01-103-4263

NSN 5310-01-103-4263 · NIIN 011034263

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

Government record, cited

Also searched as 5310-01-103-4263 · 5310011034263 · NIIN 011034263 · 01-103-4263 · FSC 5310 Nuts and Washers · BS-7597 · 2621-924-03 ASSY CY ITEM24 1-4 · 2621-924-03 ASSY CY ITEM24 1-4 · 2621-924-03

Nearby stock numbers ← 5310-01-103-4205 Nut Spacer, Plate · 5310-01-103-5164 Locknut →

5310-01-103-4263 — Nuts and Washers

Features

Nut,plain,hexagon — FSC 5310
Width Across Flats: 0.812 INCHES NOMINAL IN
Thread Series: UNF
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.625 INCHES IN
Nut Height: 0.193 INCHES NOMINAL IN
Nut Style: HEXAGON
Thread Class: 2B

Identification

NSN: 5310-01-103-4263
NIIN: 011034263
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-103-4263, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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	5310-01-103-4263
Item Name	Nut,plain,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Width Across Flats	0.812 INCHES NOMINAL IN
Thread Series	UNF
Thread Direction	RIGHT-HAND
Nominal Thread Size	0.625 INCHES IN
Nut Height	0.193 INCHES NOMINAL IN
Nut Style	HEXAGON
Thread Class	2B
Thread Quantity Per Inch	18
Material	COPPER ALLOY OVERALL
Bearing Surface Type	FLAT

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 8

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

5310-01-103-8092WAL-B28-00920 POSSIBLE MATCH

NUT,YOKE BUSHING,VALVE

Possible match (shared part number)Hunt Valve Company, Inc.

5310-01-103-90262621-924-03 ITEM 24 POSSIBLE MATCH

NUT,PLAIN,HEXAGON

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4820-01-111-5748 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

4820-01-112-8489 POSSIBLE MATCH

VALVE,ANGLE

Possible match (shared part number)

5365-01-113-4567 POSSIBLE MATCH

BUSHING,YOKE

Possible match (shared part number)

4820-01-121-19462621-924-03 ITEM 12 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4820-01-159-8601314SPASSYCY 1IN POSSIBLE MATCH

VALVE,GLOBE

Possible match (shared part number)Hunt Valve Company, Inc.

4820-01-210-6866 POSSIBLE MATCH

VALVE,GLOBE

Possible match (shared part number)

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
BS-7597	5/9 Secondary reference U.S. Government activity
2621-924-03 ASSY CY ITEM24 1-4	5/9 Secondary reference U.S. Government activity
2621-924-03 ASSY CY ITEM24 1-4	3/9 Design control — primary reference U.S. Government activity
2621-924-03	D/9 Drawing number reference only U.S. Government activity

Related Parts

5310-01-103-8092POSSIBLE MATCH

NUT,YOKE BUSHING,VALVE

WAL-B28-00920

5310-01-103-9026POSSIBLE MATCH

NUT,PLAIN,HEXAGON

2621-924-03 ITEM 24

4820-01-111-5748POSSIBLE MATCH

STEM,FLUID VALVE

4820-01-112-8489POSSIBLE MATCH

VALVE,ANGLE

5365-01-113-4567POSSIBLE MATCH

BUSHING,YOKE

4820-01-121-1946POSSIBLE MATCH

STEM,FLUID VALVE

2621-924-03 ITEM 12

4820-01-159-8601POSSIBLE MATCH

VALVE,GLOBE

314SPASSYCY 1IN

4820-01-210-6866POSSIBLE MATCH

VALVE,GLOBE

Frequently Asked Questions

What is NSN 5310-01-103-4263?

NSN 5310-01-103-4263 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-01-103-4263?

8 possible matches (shared part number, not a government interchangeability claim): 5310-01-103-8092, 5310-01-103-9026, 4820-01-111-5748. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-01-103-4263?

Key specifications for 5310-01-103-4263: Width Across Flats: 0.812 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.625 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-103-4263 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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