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NSN 4730-01-249-0538Government record, cited
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Elbow, Hose4730-01-249-0538

NSN 4730-01-249-0538 · NIIN 012490538
FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as  4730-01-249-0538 · 4730012490538 · NIIN 012490538 · 01-249-0538 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · 2621-166-01 · 2621-166-01 PIECE 130
Nearby stock numbers  ·
L 1.125 INCHES NOMINAL ALL ENDS IN HOSE FITTING
4730-01-249-0538 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
  • Elbow,hose — FSC 4730
  • Flow Angle: 90.0 DEGREES
  • Nominal Outside Diameter Hose Accommodated: 0.375 INCHES ALL ENDS IN
  • Connection Type: UNTHREADED INTERNAL HOSE ALL ENDS
  • Material Document and Classification: QQ-B-637 ALLOY 482 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Leg Length: 1.125 INCHES NOMINAL ALL ENDS IN
  • Material: COPPER ALLOY OVERALL
Identification
  • NSN: 4730-01-249-0538
  • NIIN: 012490538
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description

The Elbow,hose, cataloged under National Stock Number 4730-01-249-0538, 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 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-249-0538
Item NameElbow,hose
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
StatusACTIVE
Flow Angle90.0 DEGREES
Nominal Outside Diameter Hose Accommodated0.375 INCHES ALL ENDS IN
Connection TypeUNTHREADED INTERNAL HOSE ALL ENDS
Material Document and ClassificationQQ-B-637 ALLOY 482 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Leg Length1.125 INCHES NOMINAL ALL ENDS IN
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-305-57842621-166-01 PIECE 211 MOD POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-305-57852621-166-01- PIECE 6 MOD POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Triumph Manufacturing Company, Inc.
4730-01-315-56092621-166-01 PIECE 190 POSSIBLE MATCH
ELBOW,FLANGE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-315-56112621-166-01 PIECE 154 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Triumph Manufacturing Company, Inc.
4730-01-318-28442621-166-01 PIECE 153 MOD POSSIBLE MATCH
ELBOW,FLANGE
Possible match (shared part number)Derbyshire Machine & Tool Co
4730-01-318-28452621-166-01 PIECE 120 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-69662621-166-01 PIECE 7 POSSIBLE MATCH
ELBOW,FLANGE TO TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-343-0477 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
2621-166-01 D/9 Drawing number reference only
U.S. Government activity
2621-166-01 PIECE 130 3/2 Design control — primary reference
U.S. Government activity
Related Parts
4730-01-305-5784POSSIBLE MATCH
ELBOW,PIPE
2621-166-01 PIECE 211 MOD
4730-01-305-5785POSSIBLE MATCH
ELBOW,PIPE
2621-166-01- PIECE 6 MOD
4730-01-315-5609POSSIBLE MATCH
ELBOW,FLANGE
2621-166-01 PIECE 190
4730-01-315-5611POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-01 PIECE 154
4730-01-318-2844POSSIBLE MATCH
ELBOW,FLANGE
2621-166-01 PIECE 153 MOD
4730-01-318-2845POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-01 PIECE 120
4730-01-325-6966POSSIBLE MATCH
ELBOW,FLANGE TO TUBE
2621-166-01 PIECE 7
4730-01-343-0477POSSIBLE MATCH
ELBOW,FLANGE TO PIPE

Frequently Asked Questions

What is NSN 4730-01-249-0538?

NSN 4730-01-249-0538 is a Elbow,hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What NSN replaces 4730-01-249-0538?

8 possible matches (shared part number, not a government interchangeability claim): 4730-01-305-5784, 4730-01-305-5785, 4730-01-315-5609. Verify interchangeability with system specifications before substitution.

What are the specifications of 4730-01-249-0538?

Key specifications for 4730-01-249-0538: Flow Angle: 90.0 DEGREES; Nominal Outside Diameter Hose Accommodated: 0.375 INCHES ALL ENDS IN; Connection Type: UNTHREADED INTERNAL HOSE ALL ENDS; Material Document and Classification: QQ-B-637 ALLOY 482 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-249-0538 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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