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NSN 4730-01-088-9628Government record, cited
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Elbow, Pipe4730-01-088-9628

NSN 4730-01-088-9628 · NIIN 010889628 · Part number 2621-16604ASSY24
Derbyshire Machine & Tool Co · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 71905
Government record, cited
NSN 4730-01-088-9628 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-088-9628. Manufacturer of record part number: 2621-16604ASSY24.
Also searched as  4730-01-088-9628 · 4730010889628 · NIIN 010889628 · 01-088-9628 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 71905 · 2621-16604ASSY24 · 19-97-9321 · 2621-166-04ASSY24 · 845-4775995ASSY24 · 845-4775995
Nearby stock numbers  ·
L 3.750 INCHES NOMINAL ALL ENDS IN UNF INLET HOSE FITTING
4730-01-088-9628 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
  • Elbow,pipe — FSC 4730
  • Furnished Items and Quantity: 1 PLUG AND 1 PREFORMED PACKING
  • Flow Angle: 90.0 DEGREES
  • Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN
  • Connection Style: REDUCED SOCKET W/ GROOVE (PIPE) ALL ENDS
  • Connection Style: GASKET SEAL (PIPE) INLET
  • Inlet Location: LOW HEEL SINGLE INLET
  • Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS
Identification
  • NSN: 4730-01-088-9628
  • NIIN: 010889628
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 2621-16604ASSY24
  • Manufacturer: Derbyshire Machine & Tool Co
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-01-088-9628, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
NSN4730-01-088-9628
Primary Part Number2621-16604ASSY24
Item NameElbow,pipe
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerDerbyshire Machine & Tool Co
StatusACTIVE
Furnished Items and Quantity1 PLUG AND 1 PREFORMED PACKING
Flow Angle90.0 DEGREES
Nominal Pipe Size Accommodated2.000 INCHES ALL ENDS IN
Connection StyleREDUCED SOCKET W/ GROOVE (PIPE) ALL ENDS
Connection StyleGASKET SEAL (PIPE) INLET
Inlet LocationLOW HEEL SINGLE INLET
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
Material Document and ClassificationQQ-C-390,ALLOY D5,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated1.500 INCHES INLET IN
Leg Length3.750 INCHES NOMINAL ALL ENDS IN
Nominal Thread Size1.875 INCHES ALL ENDS IN
Thread Class2B INLET
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorUNF INLET
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-146-88602621-166-04 ASSY 47 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-146-88612621-166-04 ASSY45 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-147-93282621-166-04 ASSY A84 POSSIBLE MATCH
VENT AND DRAIN ASSEMBLY
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-162-511218-97-4062 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-167-98632621-166-04 ASSY 55 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-192-292718-00-5650 POSSIBLE MATCH
ELBOW,DRAINAGE PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
2621-16604ASSY24 PRIMARY Derbyshire Machine & Tool Co (USA)
Reference documents
ReferenceMeaning
19-97-9321 3/2 Design control — primary reference
U.S. Government activity
2621-166-04ASSY24 3/2 Design control — primary reference
U.S. Government activity
845-4775995ASSY24 5/2 Secondary reference
U.S. Government activity
845-4775995 D/9 Drawing number reference only
U.S. Government activity
Related Parts
4730-01-146-8860POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-04 ASSY 47
4730-01-146-8861POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-04 ASSY45
4820-01-147-9328POSSIBLE MATCH
VENT AND DRAIN ASSEMBLY
2621-166-04 ASSY A84
4730-01-162-5112POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
18-97-4062
4730-01-167-9863POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-04 ASSY 55
4730-01-192-2927POSSIBLE MATCH
ELBOW,DRAINAGE PIPE
18-00-5650

Frequently Asked Questions

What is NSN 4730-01-088-9628?

NSN 4730-01-088-9628 is a Elbow,pipe, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-088-9628?

NSN 4730-01-088-9628 has 1 manufacturer part number on file: 2621-16604ASSY24 (Derbyshire Machine & Tool Co).

What NSN replaces 4730-01-088-9628?

6 possible matches (shared part number, not a government interchangeability claim): 4730-01-146-8860, 4730-01-146-8861, 4820-01-147-9328. Verify interchangeability with system specifications before substitution.

What are the specifications of 2621-16604ASSY24?

Key specifications for 2621-16604ASSY24: Furnished Items and Quantity: 1 PLUG AND 1 PREFORMED PACKING; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Connection Style: REDUCED SOCKET W/ GROOVE (PIPE) ALL ENDS. 14 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-088-9628 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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