The Pipe,bent,metallic, cataloged under National Stock Number 4710-01-221-5502, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Amec Foster Wheeler North America Corp. Dba Foster Wheeler. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-221-5502 |
| Primary Part Number | 404-55-1-33 PIECE LQ |
| Item Name | Pipe,bent,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Amec Foster Wheeler North America Corp. Dba Foster Wheeler |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 6.000 INCHES IN |
| Wall Thickness Designation | SCHEDULE 80 |
| First End Style | PLAIN |
| Material Document and Classification | ASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Relationship with First End | IDENTICAL |
| Material | STEEL |
| Construction | SEAMLESS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 404-55-1-33 PIECE LQ PRIMARY | Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA) |
| 404-55-1-33-H PIECE LQ | Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA) |
| Reference | Meaning |
|---|---|
| 404-55-1-33-H | D/9 Drawing number reference only Amec Foster Wheeler North America Corp. Dba Foster Wheeler |
NSN 4710-01-221-5502 is a Pipe,bent,metallic, manufactured by Amec Foster Wheeler North America Corp. Dba Foster Wheeler, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-221-5502 has 2 manufacturer part numbers on file: 404-55-1-33 PIECE LQ (Amec Foster Wheeler North America Corp. Dba Foster Wheeler), 404-55-1-33-H PIECE LQ (Amec Foster Wheeler North America Corp. Dba Foster Wheeler).
1 possible match (shared part number, not a government interchangeability claim): 4710-01-221-5503. Verify interchangeability with system specifications before substitution.
Key specifications for 404-55-1-33 PIECE LQ: Nominal Pipe Size Designation: 6.000 INCHES IN; Wall Thickness Designation: SCHEDULE 80; First End Style: PLAIN; Material Document and Classification: ASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.