PartsTable TECHNICAL DATA SHEET
Download PDF
NSN 4730-01-126-4857Government record, cited
Home › MRO › Pipe, Tubing, Hose, and Fittings › 4730-01-126-4857

Elbow, Flange to Pipe4730-01-126-4857

NSN 4730-01-126-4857 · NIIN 011264857 · Part number 6Y2621-166-O2ASSY184
Bishop Enterprises, Inc. · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 6Y882
Government record, cited
NSN 4730-01-126-4857 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-126-4857. Manufacturer of record part number: 6Y2621-166-O2ASSY184.
Also searched as  4730-01-126-4857 · 4730011264857 · NIIN 011264857 · 01-126-4857 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 6Y882 · 6Y2621-166-O2ASSY184 · 2621-166-02 ASSEMBLY 184 · 262116602-0184 · 516-4788816 FIND 18 · 2621-166-02
Nearby stock numbers  ·
L 2.518 INCHES SECOND END IN ⌀0.502 INCHES SECOND END IN HOSE FITTING
4730-01-126-4857 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
  • Elbow,flange to Pipe — FSC 4730
  • Furnished Items and Quantity: 1 PREFORMED PACKING AND 4 STUD AND 4 FLAT WASHER
  • Flow Angle: 90.0 DEGREES
  • Material Document and Classification: UNABLE TO DECODE
  • Material Document and Classification: QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE
  • Material Document and Classification: QQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Bolt Hole Nominal Diameter: 0.502 INCHES SECOND END IN
  • Nominal Outside Diameter Tube Accommodated: 1.900 INCHES FIRST END IN
Identification
  • NSN: 4730-01-126-4857
  • NIIN: 011264857
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 6Y2621-166-O2ASSY184
  • Manufacturer: Bishop Enterprises, Inc.
General Description

The Elbow,flange to Pipe, cataloged under National Stock Number 4730-01-126-4857, 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 Bishop Enterprises, Inc.. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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
NSN4730-01-126-4857
Primary Part Number6Y2621-166-O2ASSY184
Item NameElbow,flange to Pipe
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerBishop Enterprises, Inc.
StatusACTIVE
Furnished Items and Quantity1 PREFORMED PACKING AND 4 STUD AND 4 FLAT WASHER
Flow Angle90.0 DEGREES
Material Document and ClassificationUNABLE TO DECODE
Material Document and ClassificationQQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE
Material Document and ClassificationQQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY
Bolt Hole Nominal Diameter0.502 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated1.900 INCHES FIRST END IN
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Center to Center Nominal Distance Between Bolt Holes Along Width2.518 INCHES SECOND END IN
Center to Center Nominal Distance Between Bolt Holes Along Length2.518 INCHES SECOND END IN
Unable to DecodeUNABLE TO DECODE
MaterialUNABLE TO DECODE
MaterialSTEEL CORROSION RESISTING BODY
MaterialALUMINUM ALLOY SLEEVE
MaterialSTEEL CORROSION RESISTING BODYUNABLE TO DECODE
Raised Face Nominal Diameter1.482 INCHES SECOND END IN
Raised Face Nominal Height0.138 INCHES SECOND END IN
Nominal Thickness3.020 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 12
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-281-09622621-166-02-137 POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-290-91672621-166-02 ASSY 134 POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-307-01242621-166-02 PIECE 194 POSSIBLE MATCH
ELBOW,FLANGE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-317-88902621-166-02 PIECE 167 POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-318-28462621-166-02 PC 29 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-40062621-166-02 PIECE 97 POSSIBLE MATCH
ELBOW,FLANGE
Possible match (shared part number)Derbyshire Machine & Tool Co
4730-01-325-40092621-166-02 PIECE 31 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-40102621-166-02 PIECE R31 POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-90202621-166-02 PIECE 202MOD POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-21372621-166-02 PC-140 POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
6Y2621-166-O2ASSY184 Bishop Enterprises, Inc. (USA)
Reference documents
ReferenceMeaning
2621-166-02 ASSEMBLY 184 5/2 Secondary reference
U.S. Government activity
262116602-0184 3/2 Design control — primary reference
U.S. Government activity
516-4788816 FIND 18 5/2 Secondary reference
U.S. Government activity
2621-166-02 D/9 Drawing number reference only
U.S. Government activity
Related Parts
4730-01-281-0962POSSIBLE MATCH
ELBOW,PIPE
2621-166-02-137
4730-01-290-9167POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 ASSY 134
4730-01-307-0124POSSIBLE MATCH
ELBOW,FLANGE
2621-166-02 PIECE 194
4730-01-317-8890POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 PIECE 167
4730-01-318-2846POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PC 29
4730-01-325-4006POSSIBLE MATCH
ELBOW,FLANGE
2621-166-02 PIECE 97
4730-01-325-4009POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PIECE 31
4730-01-325-4010POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PIECE R31
4730-01-325-9020POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PIECE 202MOD
4730-01-329-2137POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 PC-140
4730-01-329-2138POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 PC-142
4730-01-329-2163POSSIBLE MATCH
ELBOW,PIPE TO BOSS
2621-166-02 ASSY-182

Frequently Asked Questions

What is NSN 4730-01-126-4857?

NSN 4730-01-126-4857 is a Elbow,flange to Pipe, manufactured by Bishop Enterprises, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-126-4857?

NSN 4730-01-126-4857 has 1 manufacturer part number on file: 6Y2621-166-O2ASSY184 (Bishop Enterprises, Inc.).

What NSN replaces 4730-01-126-4857?

12 possible matches (shared part number, not a government interchangeability claim): 4730-01-281-0962, 4730-01-290-9167, 4730-01-307-0124. Verify interchangeability with system specifications before substitution.

What are the specifications of 6Y2621-166-O2ASSY184?

Key specifications for 6Y2621-166-O2ASSY184: Furnished Items and Quantity: 1 PREFORMED PACKING AND 4 STUD AND 4 FLAT WASHER; Flow Angle: 90.0 DEGREES; Material Document and Classification: UNABLE TO DECODE; Material Document and Classification: QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE. 18 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-126-4857 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.

PartsTable — the parts reference. Every fact cited to its source.
partstable.com/parts/4730-01-126-4857
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com
partstable.com · © 2026 PartsTable. Data for reference only.
Home · MRO Catalog · Pipe, Tubing, Hose, and Fittings