4730-01-329-2154 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling,tube — FSC 4730
Connection Style: SOCKET (TUBE) ALL ENDS
Tubing Wall Nominal Thickness for Which Designed: 0.252 INCHES ALL ENDS IN
Nominal Overall Length: 1.380 INCHES IN
Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
Style Designator: PLAIN
Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated: 0.500 INCHES ALL ENDS IN
Identification
NSN: 4730-01-329-2154
NIIN: 013292154
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Coupling,tube, cataloged under National Stock Number 4730-01-329-2154, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated
0.500 INCHES ALL ENDS IN
Operating Pressure
5100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material
NICKEL ALLOY A OVERALL
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-329-21552621-092-01 PC-102POSSIBLE MATCH
COUPLING,TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-21562621-092-01 PC-143POSSIBLE MATCH
COUPLING,TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-333-01392621-092-01 PIECE 7POSSIBLE MATCH
COUPLING,TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-333-01402621-092-01 PC 78POSSIBLE MATCH
COUPLING,TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-337-00272621-092-01 PIECE 89POSSIBLE MATCH
COUPLING,TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
262109201-0123
5/2Secondary reference
U.S. Government activity
6558988 ITEM-F6
5/2Secondary reference
U.S. Government activity
2621-092-01 PC-123
3/2Design control — primary reference
U.S. Government activity
2621-092-01
D/9Drawing number reference only
U.S. Government activity
Related Parts
4730-01-329-2155POSSIBLE MATCH
COUPLING,TUBE
2621-092-01 PC-102
4730-01-329-2156POSSIBLE MATCH
COUPLING,TUBE
2621-092-01 PC-143
4730-01-333-0139POSSIBLE MATCH
COUPLING,TUBE
2621-092-01 PIECE 7
4730-01-333-0140POSSIBLE MATCH
COUPLING,TUBE
2621-092-01 PC 78
4730-01-337-0027POSSIBLE MATCH
COUPLING,TUBE
2621-092-01 PIECE 89
Frequently Asked Questions
What is NSN 4730-01-329-2154?
NSN 4730-01-329-2154 is a Coupling,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-329-2154?
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-329-2155, 4730-01-329-2156, 4730-01-333-0139. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-329-2154?
Key specifications for 4730-01-329-2154: Connection Style: SOCKET (TUBE) ALL ENDS; Tubing Wall Nominal Thickness for Which Designed: 0.252 INCHES ALL ENDS IN; Nominal Overall Length: 1.380 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-329-2154 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.