The Pocket,stake, cataloged under National Stock Number 5340-01-258-8589, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-258-8589 |
| Primary Part Number | 52C8172-1 |
| Item Name | Pocket,stake |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba |
| Status | ACTIVE |
| Length | 9.000 INCHES NOMINAL9.000 INCHES NOMINAL IN |
| General Characteristics Item Description | ASSY OF TWO MTG BRKT AND TUBE 5.500 IN. H O/A; FOUR 0.560 IN. MIN 0.572 IN. MAX DIA MTG HOLES ON 6.740 IN. MIN 6.760 IN. MAX BY 5.500 IN. MTG CENTERS IN |
| Material Document and Classification | ASTM A36 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) 1ST MATERIAL RESPONSE AND ASTM A513, TYPE 5 COMP 1020 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) 2ND MATERIAL RESPONSE |
| Width | 7.000 INCHES NOMINAL7.000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 52C8172-1 PRIMARY | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA) |
| Reference | Meaning |
|---|---|
| 5340PL0790302 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5340-01-258-8589 is a Pocket,stake, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-258-8589 has 1 manufacturer part number on file: 52C8172-1 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-362-9006. Verify interchangeability with system specifications before substitution.
Key specifications for 52C8172-1: Length: 9.000 INCHES NOMINAL9.000 INCHES NOMINAL IN; General Characteristics Item Description: ASSY OF TWO MTG BRKT AND TUBE 5.500 IN. H O/A; FOUR 0.560 IN. MIN 0.572 IN. MAX DIA MTG HOLES ON 6.740 IN. MIN 6.760 IN. MAX BY 5.500 IN. MTG CENTERS IN; Material Document and Classification: ASTM A36 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) 1ST MATERIAL RESPONSE AND ASTM A513, TYPE 5 COMP 1020 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) 2ND MATERIAL RESPONSE; Width: 7.000 INCHES NOMINAL7.000 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.