The Pocket,stake, cataloged under National Stock Number 5340-01-257-1772, 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 6 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-257-1772 |
| Primary Part Number | 52C8173-2 |
| 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 | 8.440 INCHES MINIMUM AND 8.440 INCHES MINIMUM AND 8.560 INCHES MAXIMUM8.560 INCHES MAXIMUM IN |
| General Characteristics Item Description | BASEPLATE 8.440 IN. MIN 8.560 IN. MAX IN. LG,8.000 IN. W,0.500 IN. THK STOCK; CYLINDRICAL POCKET 5.250 IN. OD,4.250 IN. ID; WELDED STRUCTURE IN |
| Material Document and Classification | ASTM B221,ALLOY 6061,T6511 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ALL MATERIAL RESPONSES |
| Width | 8.000 INCHES NOMINAL8.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Thickness | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| AD-2331246-2 | Atech Inc (USA) |
| 203262 | Wiba Zevenaar B.v. (NLD) |
| 02925 | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| 52C8173-2 PRIMARY | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA) |
| 203262 | Terberg Dts (uk) Limited (GBR) |
| Reference | Meaning |
|---|---|
| 5340PL0789907 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 52C8173-1 | 5/9 Secondary reference Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba |
NSN 5340-01-257-1772 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 5340-01-257-1772 has 5 manufacturer part numbers on file: AD-2331246-2 (Atech Inc), 203262 (Wiba Zevenaar B.v.), 02925 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 52C8173-2 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba), 203262 (Terberg Dts (uk) Limited).
2 possible matches (shared part number, not a government interchangeability claim): 6750-01-427-2145, 5980-01-544-3422. Verify interchangeability with system specifications before substitution.
Key specifications for 52C8173-2: Length: 8.440 INCHES MINIMUM AND 8.440 INCHES MINIMUM AND 8.560 INCHES MAXIMUM8.560 INCHES MAXIMUM IN; General Characteristics Item Description: BASEPLATE 8.440 IN. MIN 8.560 IN. MAX IN. LG,8.000 IN. W,0.500 IN. THK STOCK; CYLINDRICAL POCKET 5.250 IN. OD,4.250 IN. ID; WELDED STRUCTURE IN; Material Document and Classification: ASTM B221,ALLOY 6061,T6511 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ALL MATERIAL RESPONSES; Width: 8.000 INCHES NOMINAL8.000 INCHES NOMINAL IN. 6 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.