NSN 4310-01-073-5519 · NIIN 010735519 · Part number 21741
American Bristol Industries Inc. · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 55612
Government record, cited
NSN 4310-01-073-5519 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-073-5519. Manufacturer of record part number: 21741.
Also searched as4310-01-073-5519 ·
4310010735519 ·
NIIN 010735519 ·
01-073-5519 ·
FSC 4310 Compressors and Vacuum Pumps · CAGE 55612 · 21741
Manufacturer of record: American Bristol Industries Inc.
Identification
NSN: 4310-01-073-5519
NIIN: 010735519
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 21741
Manufacturer: American Bristol Industries Inc.
General Description
The Rod and Piston Asse, cataloged under National Stock Number 4310-01-073-5519, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is American Bristol Industries Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share 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
4310-01-073-5519
Primary Part Number
21741
Item Name
Rod and Piston Asse
FSC / FSG
4310 / 43 — Compressors and Vacuum Pumps
Manufacturer
American Bristol Industries Inc.
Status
ACTIVE
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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5998-01-084-8776POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
Possible match (shared part number)
4320-01-198-6555H2174-1POSSIBLE MATCH
PUMP UNIT,CENTRIFUGAL
Possible match (shared part number)Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5136-01-697-903421741POSSIBLE MATCH
DIE AND TAP SET,THREAD CUTTING
Possible match (shared part number)Vermont American Corp Hardware Tool Div
NSN 4310-01-073-5519 is a Rod and Piston Asse, manufactured by American Bristol Industries Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
What part numbers are listed for NSN 4310-01-073-5519?
NSN 4310-01-073-5519 has 1 manufacturer part number on file: 21741 (American Bristol Industries Inc.).
What NSN replaces 4310-01-073-5519?
3 possible matches (shared part number, not a government interchangeability claim): 5998-01-084-8776, 4320-01-198-6555, 5136-01-697-9034. Verify interchangeability with system specifications before substitution.
What are the specifications of 21741?
Key specifications for 21741: End Item Identification: THERMAL IMAGERY AND ANCILLARY EQUIPMENT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4310-01-073-5519 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.