Retainer, Diaphragm4820-01-071-8340

NSN 4820-01-071-8340 · NIIN 010718340

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-071-8340 · 4820010718340 · NIIN 010718340 · 01-071-8340 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-01-071-8339 Disk, Valve · 4820-01-071-8341 Diaphragm, Valve, Flat →

4820-01-071-8340 — Valves, Nonpowered

Features

Retainer,diaphragm — FSC 4820
General Characteristics Item Description: ALUMINUM ALLOY 6061-T6511 PER QQ-A-200/8; RED ANODIZE PER MIL-A-8625 TYPE 2; 1.500 IN. L; 1.500 IN. W; 0.800 IN. H; 4 HOLES IN PLATE EQUALLY SPACED 0.560 IN. FROM CENTER LINE 0.184 IN. MIN 0.190 IN. MAX DIA THRU IN

Identification

NSN: 4820-01-071-8340
NIIN: 010718340
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Retainer,diaphragm, cataloged under National Stock Number 4820-01-071-8340, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-071-8340
Item Name	Retainer,diaphragm
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
General Characteristics Item Description	ALUMINUM ALLOY 6061-T6511 PER QQ-A-200/8; RED ANODIZE PER MIL-A-8625 TYPE 2; 1.500 IN. L; 1.500 IN. W; 0.800 IN. H; 4 HOLES IN PLATE EQUALLY SPACED 0.560 IN. FROM CENTER LINE 0.184 IN. MIN 0.190 IN. MAX DIA THRU 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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

3020-01-163-7685203161-1 POSSIBLE MATCH

CHAIN,LEAF

Possible match (shared part number)Walter Truck Corp

Cross-Reference Index

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

Reference documents

Reference	Meaning
203161-1	3/2 Design control — primary reference U.S. Government activity

Related Parts

3020-01-163-7685POSSIBLE MATCH

CHAIN,LEAF

203161-1

Frequently Asked Questions

What is NSN 4820-01-071-8340?

NSN 4820-01-071-8340 is a Retainer,diaphragm, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-071-8340?

1 possible match (shared part number, not a government interchangeability claim): 3020-01-163-7685. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-071-8340?

Key specifications for 4820-01-071-8340: General Characteristics Item Description: ALUMINUM ALLOY 6061-T6511 PER QQ-A-200/8; RED ANODIZE PER MIL-A-8625 TYPE 2; 1.500 IN. L; 1.500 IN. W; 0.800 IN. H; 4 HOLES IN PLATE EQUALLY SPACED 0.560 IN. FROM CENTER LINE 0.184 IN. MIN 0.190 IN. MAX DIA THRU IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-071-8340 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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