Clamp, Diaphragm, Pump4320-01-320-1929

NSN 4320-01-320-1929 · NIIN 013201929

FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors

Government record, cited

Also searched as 4320-01-320-1929 · 4320013201929 · NIIN 013201929 · 01-320-1929 · FSC 4320 Power and Hand Pumps · 059664 · 59664

Nearby stock numbers ← 4320-01-320-1904 Reservoir, Hydraulic · 4320-01-320-2030 Pump, Axial Pistons →

Features

Clamp,diaphragm,pump — FSC 4320
General Characteristics Item Description: BRONZE; 4.000 IN. OD; 0.375 IN. W; 2.000 IN. ID; 4 HOLES 0.312 IN. DIA ON 2.500 IN. BC EQUALLY SPACED; OUTSIDE CORNERS ARE 0.130 IN. RADIUS BLEND IN

Identification

NSN: 4320-01-320-1929
NIIN: 013201929
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors

General Description

The Clamp,diaphragm,pump, cataloged under National Stock Number 4320-01-320-1929, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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	4320-01-320-1929
Item Name	Clamp,diaphragm,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Status	ACTIVE
General Characteristics Item Description	BRONZE; 4.000 IN. OD; 0.375 IN. W; 2.000 IN. ID; 4 HOLES 0.312 IN. DIA ON 2.500 IN. BC EQUALLY SPACED; OUTSIDE CORNERS ARE 0.130 IN. RADIUS BLEND 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.

3120-01-521-277459664-11 POSSIBLE MATCH

BUSHING,SLEEVE

Possible match (shared part number)Fleet Readiness Center Southwest

Cross-Reference Index

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

Reference documents

Reference	Meaning
059664	5/2 Secondary reference U.S. Government activity
59664	3/9 Design control — primary reference U.S. Government activity

Related Parts

3120-01-521-2774POSSIBLE MATCH

BUSHING,SLEEVE

59664-11

Frequently Asked Questions

What is NSN 4320-01-320-1929?

NSN 4320-01-320-1929 is a Clamp,diaphragm,pump, classified under FSC 4320, Power and Hand Pumps. Status: active.

What NSN replaces 4320-01-320-1929?

1 possible match (shared part number, not a government interchangeability claim): 3120-01-521-2774. Verify interchangeability with system specifications before substitution.

What are the specifications of 4320-01-320-1929?

Key specifications for 4320-01-320-1929: General Characteristics Item Description: BRONZE; 4.000 IN. OD; 0.375 IN. W; 2.000 IN. ID; 4 HOLES 0.312 IN. DIA ON 2.500 IN. BC EQUALLY SPACED; OUTSIDE CORNERS ARE 0.130 IN. RADIUS BLEND IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-01-320-1929 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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