Material Document and Classification: T-C-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Breaking Strength: 560.0 POUNDS MINIMUM LBS
Nondefinitive Spec/std Data: 1 TYPE AND 3 CLASS AND 10 SIZE
Physical Form: COIL
Identification
NSN: 4020-00-233-6557
NIIN: 002336557
FSC: 4020 — Fiber Rope, Cordage, and Twine
FSG: 40 — Rope, Cable, Chain, and Fittings
General Description
The Cord,fibrous, cataloged under National Stock Number 4020-00-233-6557, is classified within Federal Supply Class 4020 (Fiber Rope, Cordage, and Twine) of the Rope, Cable, Chain, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government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
4020-00-233-6557
Item Name
Cord,fibrous
FSC / FSG
4020 / 40 — Fiber Rope, Cordage, and Twine
Status
ACTIVE
Length
400.000 YARDS MINIMUM
Overall Diameter
0.312 INCHES NOMINAL IN
Strand Quantity
18
Material Document and Classification
T-C-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Breaking Strength
560.0 POUNDS MINIMUM LBS
Nondefinitive Spec/std Data
1 TYPE AND 3 CLASS AND 10 SIZE
Physical Form
COIL
Color
NATURAL
Environmental Protection
MILDEW RESISTANT AND WATER REPELLENT
Unable to Decode
UNABLE TO DECODE
Material
COTTON OVERALL
Material
COPPER-8-QUINOLINOLATE AND WAX IMPREGNATION
Fabrication Method
BRAIDED
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 Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4020-00-233-6560POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-240-2142POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-240-2160POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-241-8439POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-243-3146POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-514-4829POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-540-6676POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-551-3343POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-00-551-8804POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
4020-01-031-0831POSSIBLE MATCH
CORD,FIBROUS
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
A-A-55622
4/1Identification reference
Federal Commercial Item Description Promulgated by General Services Administration Washington DC
TC571
5/9Secondary reference
U.S. Government activity
Related Parts
4020-00-233-6560POSSIBLE MATCH
CORD,FIBROUS
4020-00-240-2142POSSIBLE MATCH
CORD,FIBROUS
4020-00-240-2160POSSIBLE MATCH
CORD,FIBROUS
4020-00-241-8439POSSIBLE MATCH
CORD,FIBROUS
4020-00-243-3146POSSIBLE MATCH
CORD,FIBROUS
4020-00-514-4829POSSIBLE MATCH
CORD,FIBROUS
4020-00-540-6676POSSIBLE MATCH
CORD,FIBROUS
4020-00-551-3343POSSIBLE MATCH
CORD,FIBROUS
4020-00-551-8804POSSIBLE MATCH
CORD,FIBROUS
4020-01-031-0831POSSIBLE MATCH
CORD,FIBROUS
Frequently Asked Questions
What is NSN 4020-00-233-6557?
NSN 4020-00-233-6557 is a Cord,fibrous, classified under FSC 4020, Fiber Rope, Cordage, and Twine. Status: active.
What NSN replaces 4020-00-233-6557?
10 possible matches (shared part number, not a government interchangeability claim): 4020-00-233-6560, 4020-00-240-2142, 4020-00-240-2160. Verify interchangeability with system specifications before substitution.
What are the specifications of 4020-00-233-6557?
Key specifications for 4020-00-233-6557: Length: 400.000 YARDS MINIMUM; Overall Diameter: 0.312 INCHES NOMINAL IN; Strand Quantity: 18; Material Document and Classification: T-C-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 specifications are documented in the U.S. Government catalog.
Is NSN 4020-00-233-6557 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.