The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-505-2257, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-505-2257 |
| Primary Part Number | 06481101156 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| First Step Diameter | 1.2500 INCHES NOMINAL IN |
| End Diameter | 0.6100 INCHES NOMINAL IN |
| Countersink Diameter | 0.1900 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Style Designator | SEAT |
| Bore Diameter | 0.3100 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 06481101156 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| SW136-9 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| SW136-9CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| A06481.101.156C P | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 06481101156CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 06481101156 | 3/1 Design control — primary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 5340-01-505-2257 is a Seat,helical Compression Spring, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-505-2257 has 3 manufacturer part numbers on file: 06481101156 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), SW136-9 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), SW136-9CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for 06481101156: First Step Diameter: 1.2500 INCHES NOMINAL IN; End Diameter: 0.6100 INCHES NOMINAL IN; Countersink Diameter: 0.1900 INCHES NOMINAL IN; Criticality Code Justification: ZZZY. 7 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.