The Hook,chain,s, cataloged under National Stock Number 4030-01-335-3105, is classified within Federal Supply Class 4030 (Fittings for Rope, Cable, and Chain) of the Rope, Cable, Chain, and Fittings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4030-01-335-3105 |
| Item Name | Hook,chain,s |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Status | ACTIVE |
| Inside Length | 1.062 INCHES NOMINAL IN |
| Material Diameter | 0.162 INCHES NOMINAL IN |
| Style Designator | OPEN ENDS |
| Lower Loop Inside Diameter | 0.188 INCHES NOMINAL IN |
| Upper Loop Inside Diameter | 0.188 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1, CLASS 1, SIZE F TYPE |
| Surface Treatment | ZINC |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M639 TY12 CL2 SZ F | 2/2 Government specification standardization U.S. Government activity |
| M639C-TYPX11CL2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-H-639 | 4/1 Identification reference U.S. Government activity |
| MIL-H-639C-TYPX | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4030-01-335-3105 is a Hook,chain,s, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
Key specifications for 4030-01-335-3105: Inside Length: 1.062 INCHES NOMINAL IN; Material Diameter: 0.162 INCHES NOMINAL IN; Style Designator: OPEN ENDS; Lower Loop Inside Diameter: 0.188 INCHES NOMINAL IN. 8 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.