4730-00-203-3166 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Cap,pipe — FSC 4730
Nominal Pipe Size for Which Designed: 0.375 INCHES IN
Connection Style: PLAIN (OPTIONAL END)
Style Designator: CAP
Material Document and Classification: ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A216,GR WCA ASSN STD 2ND MATERIAL RESPONSE OVERALL
Thread Direction: RIGHT-HAND INTERNAL
Nominal Thread Size: 0.375 INCHES INTERNAL IN
Nondefinitive Spec/std Data: 1 TYPE
Identification
NSN: 4730-00-203-3166
NIIN: 002033166
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Cap,pipe, cataloged under National Stock Number 4730-00-203-3166, 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9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A216,GR WCA ASSN STD 2ND MATERIAL RESPONSE OVERALL
Thread Direction
RIGHT-HAND INTERNAL
Nominal Thread Size
0.375 INCHES INTERNAL IN
Nondefinitive Spec/std Data
1 TYPE
Material
IRON OR STEEL OVERALL
Thread Series Designator
NPT INTERNAL
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
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
WW-P-521
4/1Identification reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-00-203-3166?
NSN 4730-00-203-3166 is a Cap,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-00-203-3166?
Key specifications for 4730-00-203-3166: Nominal Pipe Size for Which Designed: 0.375 INCHES IN; Connection Style: PLAIN (OPTIONAL END); Style Designator: CAP; Material Document and Classification: ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A216,GR WCA ASSN STD 2ND MATERIAL RESPONSE OVERALL. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-00-203-3166 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.