Bolt, U5306-00-990-6978

NSN 5306-00-990-6978 · NIIN 009906978

FSC 5306 — Bolts · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5306-00-990-6978 · 5306009906978 · NIIN 009906978 · 00-990-6978 · FSC 5306 Bolts

Nearby stock numbers ← 5306-00-990-6971 Bolt, Shear · 5306-00-990-6979 →

5306-00-990-6978 — Bolts

Features

Bolt,u — FSC 5306
Inside Distance Between Shanks: 2.437 INCHES NOMINAL IN
Thread Length: 1.500 INCHES MINIMUM IN
Hardness Rating: 80.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM OVERALL
Distance From Inside Center of Bend to Bolt End: 4.875 INCHES NOMINAL IN
Style Designator: ROUND BEND
Nominal Thread Diameter: 0.375 INCHES IN
Thread Direction: RIGHT-HAND

Identification

NSN: 5306-00-990-6978
NIIN: 009906978
FSC: 5306 — Bolts
FSG: 53 — Hardware and Abrasives

General Description

The Bolt,u, cataloged under National Stock Number 5306-00-990-6978, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5306-00-990-6978
Item Name	Bolt,u
FSC / FSG	5306 / 53 — Bolts
Status	ACTIVE
Inside Distance Between Shanks	2.437 INCHES NOMINAL IN
Thread Length	1.500 INCHES MINIMUM IN
Hardness Rating	80.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM OVERALL
Distance From Inside Center of Bend to Bolt End	4.875 INCHES NOMINAL IN
Style Designator	ROUND BEND
Nominal Thread Diameter	0.375 INCHES IN
Thread Direction	RIGHT-HAND
Surface Treatment	ENAMEL OVERALL
Minimum Yield Strength	50000 POUNDS PER SQUARE INCH LBS
Thread Class	2A A
Thread Quantity Per Inch	24
Material	STEEL OVERALL
Thread Series Designator	UNF

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

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

Reference documents

Reference	Meaning
26249-6197	3/9 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 5306 — Bolts

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

5306-00-001-1276

5306-00-001-1276 · Item name not on file

5306-00-001-1949

5306-00-001-1949 · Item name not on file

5306-00-001-1988

5306-00-001-1988 · Item name not on file

5306-00-001-1989

5306-00-001-1989 · Item name not on file

5306-00-001-1990

5306-00-001-1990 · Item name not on file

5306-00-001-1991

5306-00-001-1991 · Item name not on file

5306-00-001-1993

BOLT,SHEAR

5306-00-001-2017

BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-990-6978?

NSN 5306-00-990-6978 is a Bolt,u, classified under FSC 5306, Bolts. Status: active.

What are the specifications of 5306-00-990-6978?

Key specifications for 5306-00-990-6978: Inside Distance Between Shanks: 2.437 INCHES NOMINAL IN; Thread Length: 1.500 INCHES MINIMUM IN; Hardness Rating: 80.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM OVERALL; Distance From Inside Center of Bend to Bolt End: 4.875 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5306-00-990-6978 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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