Insert, Hexagon5342-01-191-3421

NSN 5342-01-191-3421 · NIIN 011913421

FSC 5342 — Hardware, Weapon System · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5342-01-191-3421 · 5342011913421 · NIIN 011913421 · 01-191-3421 · FSC 5342 Hardware, Weapon System · 845-4687697 ITEM 9 · 36-01-7860 · 2642-343-05 ITEM 9 · 4687697-0009

Nearby stock numbers ← 5342-01-191-3417 Rod Assembly · 5342-01-191-3423 Mount, Cable Retractor →

Features

Insert,hexagon — FSC 5342
General Characteristics Item Description: NICKEL COPPER ALLOY,QQ-N-281,CL A MATERIAL; FLANGE DIA 3.750 IN. NOM; FLANGE THICKNESS 0.250 IN. NOM; BODY WIDTH ACROSS FLATS 2.980 IN. MIN AND 2.990 IN. MAX; BODY LENGTH 1.000 IN. NOM; SQUARE TAPERED HOLE THRU CENTER IN

Identification

NSN: 5342-01-191-3421
NIIN: 011913421
FSC: 5342 — Hardware, Weapon System
FSG: 53 — Hardware and Abrasives

General Description

The Insert,hexagon, cataloged under National Stock Number 5342-01-191-3421, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5342-01-191-3421
Item Name	Insert,hexagon
FSC / FSG	5342 / 53 — Hardware, Weapon System
Status	ACTIVE
General Characteristics Item Description	NICKEL COPPER ALLOY,QQ-N-281,CL A MATERIAL; FLANGE DIA 3.750 IN. NOM; FLANGE THICKNESS 0.250 IN. NOM; BODY WIDTH ACROSS FLATS 2.980 IN. MIN AND 2.990 IN. MAX; BODY LENGTH 1.000 IN. NOM; SQUARE TAPERED HOLE THRU CENTER IN

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
845-4687697 ITEM 9	5/9 Secondary reference U.S. Government activity
36-01-7860	5/9 Secondary reference U.S. Government activity
2642-343-05 ITEM 9	3/9 Design control — primary reference U.S. Government activity
4687697-0009	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 5342 — Hardware, Weapon System

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

5342-00-001-1696

5342-00-001-1696 · Item name not on file

5342-00-001-1972

STRAP WEBBING ASSEMBLY

5342-00-001-1980

STRAP WEBBING ASSEMBLY

5342-00-001-2492

BRACKET,FUEL TUBE TO CASE

5342-00-001-2502

BRACKET,QUICK DISC

5342-00-001-3915

CLIP,SPECIAL

5342-00-001-4001

HANDLE ASSEMBLY

5342-00-001-4655

5342-00-001-4655 · Item name not on file

Frequently Asked Questions

What is NSN 5342-01-191-3421?

NSN 5342-01-191-3421 is a Insert,hexagon, classified under FSC 5342, Hardware, Weapon System. Status: active.

What are the specifications of 5342-01-191-3421?

Key specifications for 5342-01-191-3421: General Characteristics Item Description: NICKEL COPPER ALLOY,QQ-N-281,CL A MATERIAL; FLANGE DIA 3.750 IN. NOM; FLANGE THICKNESS 0.250 IN. NOM; BODY WIDTH ACROSS FLATS 2.980 IN. MIN AND 2.990 IN. MAX; BODY LENGTH 1.000 IN. NOM; SQUARE TAPERED HOLE THRU CENTER IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 5342-01-191-3421 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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