4730-01-082-2884 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Flange,pipe — FSC 4730
Face Seating Surface Condition: MACHINED
Nominal Pipe Size for Which Designed: 1.500 INCHES IN
Flange Section Style: RAISED FACE SOCKET NECK (BULK HEAD)
Style Designator: SQUARE, ONE BOLT HOLE CIRCLE
Material Document and Classification: QQ-S-763,CL 304,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE
Features Provided: O RING
Bolt Hole Quantity: 4
Identification
NSN: 4730-01-082-2884
NIIN: 010822884
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Flange,pipe, cataloged under National Stock Number 4730-01-082-2884, 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 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
QQ-S-763,CL 304,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE
Features Provided
O RING
Bolt Hole Quantity
4
Bolt Circle Diameter
1.500 INCHES NOMINAL IN
Material
STEEL CORROSION RESISTING
Furnished Items
SCREW
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 Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-155-35652621-228-01PC55POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-156-48452621-228-01ASSY205POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-199-18874687676-0051POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-306-02682621-228-01 PIECE 193GPOSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-85322621-228-01 PIECE 216GPOSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-90532621-228-02 PIECE 143POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Derbyshire Machine & Tool Co
4730-01-325-90544685937 ITEM F20POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Naval Ship Systems Command
4730-01-326-08422621-228-01 PIECE 69POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-326-14492621-228-01 PIECE 174POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-326-45392621-228-01 PIECE 179POSSIBLE MATCH
FLANGE,PIPE
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
2621-228-01ASSY203
3/2Design control — primary reference
U.S. Government activity
262122801-0203
5/2Secondary reference
U.S. Government activity
2621-228-01
D/9Drawing number reference only
U.S. Government activity
Related Parts
4730-01-155-3565POSSIBLE MATCH
FLANGE,PIPE
2621-228-01PC55
4730-01-156-4845POSSIBLE MATCH
FLANGE,PIPE
2621-228-01ASSY205
4730-01-199-1887POSSIBLE MATCH
FLANGE,PIPE
4687676-0051
4730-01-306-0268POSSIBLE MATCH
FLANGE,PIPE
2621-228-01 PIECE 193G
4730-01-325-8532POSSIBLE MATCH
FLANGE,PIPE
2621-228-01 PIECE 216G
4730-01-325-9053POSSIBLE MATCH
FLANGE,PIPE
2621-228-02 PIECE 143
4730-01-325-9054POSSIBLE MATCH
FLANGE,PIPE
4685937 ITEM F20
4730-01-326-0842POSSIBLE MATCH
FLANGE,PIPE
2621-228-01 PIECE 69
4730-01-326-1449POSSIBLE MATCH
FLANGE,PIPE
2621-228-01 PIECE 174
4730-01-326-4539POSSIBLE MATCH
FLANGE,PIPE
2621-228-01 PIECE 179
4730-01-326-8075POSSIBLE MATCH
ADAPTER,STRAIGHT,FLANGE TO PIPE
2621-228-01 PIECE 60
Frequently Asked Questions
What is NSN 4730-01-082-2884?
NSN 4730-01-082-2884 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-082-2884?
11 possible matches (shared part number, not a government interchangeability claim): 4730-01-155-3565, 4730-01-156-4845, 4730-01-199-1887. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-082-2884?
Key specifications for 4730-01-082-2884: Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 1.500 INCHES IN; Flange Section Style: RAISED FACE SOCKET NECK (BULK HEAD); Style Designator: SQUARE, ONE BOLT HOLE CIRCLE. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-082-2884 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.