Nut, Plain, Single Ball Seat, Hexag5310-00-139-6963

NSN 5310-00-139-6963 · NIIN 001396963 · Part number 4254978

Kalmar AC Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0AHU0

Government record, cited

NSN 5310-00-139-6963 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-139-6963. Manufacturer of record part number: 4254978.

Also searched as 5310-00-139-6963 · 5310001396963 · NIIN 001396963 · 00-139-6963 · FSC 5310 Nuts and Washers · CAGE 0AHU0 · 4254978 · 400D119

Nearby stock numbers ← 5310-00-139-6944 · 5310-00-139-6969 →

5310-00-139-6963 — Nuts and Washers

Features

Nut,plain,single Ball Seat,hexag — FSC 5310
Width Across Flats: 1.125 INCHES NOMINAL IN
Thread Series: UN
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.688 INCHES IN
Nut Height: 0.688 INCHES NOMINAL IN
Nut Style: SINGLE BALL SEAT, HEXAGON
Thread Class: 2B

Identification

NSN: 5310-00-139-6963
NIIN: 001396963
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 4254978
Manufacturer: Kalmar AC Inc

General Description

The Nut,plain,single Ball Seat,hexag, cataloged under National Stock Number 5310-00-139-6963, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-00-139-6963
Primary Part Number	4254978
Item Name	Nut,plain,single Ball Seat,hexag
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Kalmar AC Inc
Status	ACTIVE
Width Across Flats	1.125 INCHES NOMINAL IN
Thread Series	UN
Thread Direction	RIGHT-HAND
Nominal Thread Size	0.688 INCHES IN
Nut Height	0.688 INCHES NOMINAL IN
Nut Style	SINGLE BALL SEAT, HEXAGON
Thread Class	2B
Thread Quantity Per Inch	16
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
4254978 PRIMARY	Kalmar AC Inc (USA)
400D119 PRIMARY	Sps Technologies Afg Div (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 5310-00-139-6963?

NSN 5310-00-139-6963 is a Nut,plain,single Ball Seat,hexag, manufactured by Kalmar AC Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-00-139-6963?

NSN 5310-00-139-6963 has 2 manufacturer part numbers on file: 4254978 (Kalmar AC Inc), 400D119 (Sps Technologies Afg Div).

What are the specifications of 4254978?

Key specifications for 4254978: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Series: UN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.688 INCHES IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-139-6963 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.

PartsTable Design LLC · partstable.com