Standoff, Threaded, Spacing5340-01-646-5891

NSN 5340-01-646-5891 · NIIN 016465891

FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5340-01-646-5891 · 5340016465891 · NIIN 016465891 · 01-646-5891 · FSC 5340 Hardware, Commercial

Nearby stock numbers ← 5340-01-646-5873 Latch Base C1 · 5340-01-646-5928 Caster, Swivel →

Features

Standoff,threaded,spacing — FSC 5340
Width Across Flats: 0.250 INCHES NOMINAL IN
Length: 1.745 INCHES MINIMUM IN
Thread Length: 0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
Style Designator: INTERNALLY THREADED FULL LENGTH
Thread Direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
Nominal Thread Size: 0.1640 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
Cross-Sectional Shape: HEXAGON

Identification

NSN: 5340-01-646-5891
NIIN: 016465891
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives

General Description

The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-646-5891, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5340-01-646-5891
Item Name	Standoff,threaded,spacing
FSC / FSG	5340 / 53 — Hardware, Commercial
Status	ACTIVE
Width Across Flats	0.250 INCHES NOMINAL IN
Length	1.745 INCHES MINIMUM IN
Thread Length	0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
Style Designator	INTERNALLY THREADED FULL LENGTH
Thread Direction	RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
Nominal Thread Size	0.1640 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
Cross-Sectional Shape	HEXAGON
Material	STEEL COMP 303SE STANDOFF
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

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

Reference documents

Reference	Meaning
560R000H12	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 5340 — Hardware, Commercial

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

5340-00-000-0068

COVER,ACCESS

5340-00-000-0132

SEAT,HELICAL COMPRESSION SPRING

5340-00-000-8150

5340-00-000-8150 · Item name not on file

5340-00-001-1251

5340-00-001-1251 · Item name not on file

5340-00-001-1264

STRAP,WEBBING

5340-00-001-1265

STRAP,WEBBING

5340-00-001-1266

STRAP,WEBBING

5340-00-001-1275

HANDLE,DOOR

Frequently Asked Questions

What is NSN 5340-01-646-5891?

NSN 5340-01-646-5891 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.

What are the specifications of 5340-01-646-5891?

Key specifications for 5340-01-646-5891: Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 1.745 INCHES MINIMUM IN; Thread Length: 0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Style Designator: INTERNALLY THREADED FULL LENGTH. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5340-01-646-5891 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). 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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