Retainer, Block5342-01-025-4059

NSN 5342-01-025-4059 · NIIN 010254059 · Part number 163B5820

General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems · FSC 5342 — Hardware, Weapon System · FSG 53 — Hardware and Abrasives · CAGE 05606

Government record, cited

NSN 5342-01-025-4059 — this item is cataloged by the U.S. Government under National Stock Number 5342-01-025-4059. Manufacturer of record part number: 163B5820.

Also searched as 5342-01-025-4059 · 5342010254059 · NIIN 010254059 · 01-025-4059 · FSC 5342 Hardware, Weapon System · CAGE 05606 · 163B5820

Nearby stock numbers ← 5342-01-025-3543 Bracket, Waveguide, Aft · 5342-01-025-4778 Bracket, Strain Relief →

Features

Retainer,block — FSC 5342
General Characteristics Item Description: STEEL ASTM A108 GRADE 1018 OR GRADE 10L18,PHOSPHATE COATED MIL--P-16232 TY M CL 1 OR TY Z CL 1,1.570 IN. MIN 1.630 IN. MAX LG,0.520 IN. MIN 0.580 IN. MAX W,0.480 IN. MIN 0.520 IN. MAX THK,2 THREADED HOLES 0.3125-24 UNF IN
1 manufacturer part number on file
Manufacturer of record: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems

Identification

NSN: 5342-01-025-4059
NIIN: 010254059
FSC: 5342 — Hardware, Weapon System
FSG: 53 — Hardware and Abrasives
Primary part number: 163B5820
Manufacturer: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems

General Description

The Retainer,block, cataloged under National Stock Number 5342-01-025-4059, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5342-01-025-4059
Primary Part Number	163B5820
Item Name	Retainer,block
FSC / FSG	5342 / 53 — Hardware, Weapon System
Manufacturer	General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
Status	ACTIVE
General Characteristics Item Description	STEEL ASTM A108 GRADE 1018 OR GRADE 10L18,PHOSPHATE COATED MIL--P-16232 TY M CL 1 OR TY Z CL 1,1.570 IN. MIN 1.630 IN. MAX LG,0.520 IN. MIN 0.580 IN. MAX W,0.480 IN. MIN 0.520 IN. MAX THK,2 THREADED HOLES 0.3125-24 UNF 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

Part Number	Manufacturer
163B5820 PRIMARY	General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)

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 5342-01-025-4059?

NSN 5342-01-025-4059 is a Retainer,block, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5342, Hardware, Weapon System. Status: active.

What part numbers are listed for NSN 5342-01-025-4059?

NSN 5342-01-025-4059 has 1 manufacturer part number on file: 163B5820 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).

What are the specifications of 163B5820?

Key specifications for 163B5820: General Characteristics Item Description: STEEL ASTM A108 GRADE 1018 OR GRADE 10L18,PHOSPHATE COATED MIL--P-16232 TY M CL 1 OR TY Z CL 1,1.570 IN. MIN 1.630 IN. MAX LG,0.520 IN. MIN 0.580 IN. MAX W,0.480 IN. MIN 0.520 IN. MAX THK,2 THREADED HOLES 0.3125-24 UNF IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 5342-01-025-4059 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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