Hook, Chain, S4030-01-032-0721

NSN 4030-01-032-0721 · NIIN 010320721

FSC 4030 — Fittings for Rope, Cable, and Chain · FSG 40 — Rope, Cable, Chain, and Fittings

Government record, cited

Also searched as 4030-01-032-0721 · 4030010320721 · NIIN 010320721 · 01-032-0721 · FSC 4030 Fittings for Rope, Cable, and Chain · 4030010320721 · MS87006-52 · MS87006

Nearby stock numbers ← 4030-01-031-6974 Stake, Guy · 4030-01-032-0722 →

Features

Hook,chain,s — FSC 4030
Inside Length: 1.062 INCHES NOMINAL IN
Material Diameter: 0.134 INCHES NOMINAL IN
Style Designator: OPEN ENDS
Lower Loop Inside Diameter: 0.406 INCHES NOMINAL IN
Upper Loop Inside Diameter: 0.344 INCHES NOMINAL IN
Material: COPPER ALLOY

Identification

NSN: 4030-01-032-0721
NIIN: 010320721
FSC: 4030 — Fittings for Rope, Cable, and Chain
FSG: 40 — Rope, Cable, Chain, and Fittings

General Description

The Hook,chain,s, cataloged under National Stock Number 4030-01-032-0721, 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 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.

Technical Specifications

Parameter	Value
NSN	4030-01-032-0721
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	0.134 INCHES NOMINAL IN
Style Designator	OPEN ENDS
Lower Loop Inside Diameter	0.406 INCHES NOMINAL IN
Upper Loop Inside Diameter	0.344 INCHES NOMINAL IN
Material	COPPER ALLOY

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4030-01-198-4257 POSSIBLE MATCH

HOOK,CHAIN,S

Possible match (shared part number)

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
4030010320721	6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
MS87006-52	2/2 Government specification standardization U.S. Government activity
MS87006	4/1 Identification reference U.S. Government activity

Related Parts

4030-01-198-4257POSSIBLE MATCH

HOOK,CHAIN,S

Frequently Asked Questions

What is NSN 4030-01-032-0721?

NSN 4030-01-032-0721 is a Hook,chain,s, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.

What NSN replaces 4030-01-032-0721?

1 possible match (shared part number, not a government interchangeability claim): 4030-01-198-4257. Verify interchangeability with system specifications before substitution.

What are the specifications of 4030-01-032-0721?

Key specifications for 4030-01-032-0721: Inside Length: 1.062 INCHES NOMINAL IN; Material Diameter: 0.134 INCHES NOMINAL IN; Style Designator: OPEN ENDS; Lower Loop Inside Diameter: 0.406 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4030-01-032-0721 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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