NSN 3950-01-257-6590 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-257-6590. Manufacturer of record part number: 1001656.
Also searched as3950-01-257-6590 ·
3950012576590 ·
NIIN 012576590 ·
01-257-6590 ·
FSC 3950 Winches, Hoists, Cranes, and Derricks · CAGE 31728 · 1001656
The Chain,capstan Up-Do, cataloged under National Stock Number 3950-01-257-6590, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Spin Physics Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Chain,capstan Up-Do
FSC / FSG
3950 — Winches, Hoists, Cranes, and Derricks (FSG 39)
Manufacturers
Spin Physics Inc (CAGE 31728)
Technical Specifications
Parameter
Value
NSN
3950-01-257-6590
Primary Part Number
1001656
Item Name
Chain,capstan Up-Do
FSC / FSG
3950 / 39 — Winches, Hoists, Cranes, and Derricks
Manufacturer
Spin Physics Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2510-01-557-02671001656POSSIBLE MATCH
HINGE,HATCH,VEHICULAR
Possible match (shared part number)General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
4220-01-669-33141001656POSSIBLE MATCH
BOOTS,DIVERS'
Possible match (shared part number)Aqua Lung Co Ltd
NSN 3950-01-257-6590 is a Chain,capstan Up-Do, manufactured by Spin Physics Inc, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
What part numbers are listed for NSN 3950-01-257-6590?
NSN 3950-01-257-6590 has 1 manufacturer part number on file: 1001656 (Spin Physics Inc).
What NSN replaces 3950-01-257-6590?
2 possible matches (shared part number, not a government interchangeability claim): 2510-01-557-0267, 4220-01-669-3314. Verify interchangeability with system specifications before substitution.
Is NSN 3950-01-257-6590 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.