NSN 5680-01-455-4756 · NIIN 014554756 · Part number 301
Cen-Tex Marine Fabricators, Inc · FSC 5680 — Miscellaneous Construction Materials · FSG 56 — Construction and Building Materials · CAGE 1Y537
Government record, cited
NSN 5680-01-455-4756 — this item is cataloged by the U.S. Government under National Stock Number 5680-01-455-4756. Manufacturer of record part number: 301.
Also searched as5680-01-455-4756 ·
5680014554756 ·
NIIN 014554756 ·
01-455-4756 ·
FSC 5680 Miscellaneous Construction Materials · CAGE 1Y537 · 301
General Characteristics Item Description: 20 INCH OUTSIDE DIAMETER; 17.750 INSIDE DIAMETER; STEEL COVER IS 0.375 INCH THICK IN
1 manufacturer part number on file
Manufacturer of record: Cen-Tex Marine Fabricators, Inc
Identification
NSN: 5680-01-455-4756
NIIN: 014554756
FSC: 5680 — Miscellaneous Construction Materials
FSG: 56 — Construction and Building Materials
Primary part number: 301
Manufacturer: Cen-Tex Marine Fabricators, Inc
General Description
The Manhole Top Assembly, cataloged under National Stock Number 5680-01-455-4756, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. The manufacturer of record is Cen-Tex Marine Fabricators, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5680-01-455-4756
Primary Part Number
301
Item Name
Manhole Top Assembly
FSC / FSG
5680 / 56 — Miscellaneous Construction Materials
Manufacturer
Cen-Tex Marine Fabricators, Inc
Status
ACTIVE
General Characteristics Item Description
20 INCH OUTSIDE DIAMETER; 17.750 INSIDE DIAMETER; STEEL COVER IS 0.375 INCH THICK IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5680 — Miscellaneous Construction Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5680-00-003-8318
5680-00-003-8318 · Item name not on file
5680-00-019-4358
5680-00-019-4358 · Item name not on file
5680-00-019-5376
5680-00-019-5376 · Item name not on file
5680-00-033-7057
5680-00-033-7057 · Item name not on file
5680-00-043-1294
5680-00-043-1294 · Item name not on file
5680-00-043-1295
5680-00-043-1295 · Item name not on file
5680-00-043-1296
5680-00-043-1296 · Item name not on file
5680-00-043-1297
5680-00-043-1297 · Item name not on file
Related Parts in Construction and Building Materials
5680-00-003-8318
5680-00-003-8318 · Item name not on file
5680-00-019-4358
5680-00-019-4358 · Item name not on file
5680-00-019-5376
5680-00-019-5376 · Item name not on file
5680-00-033-7057
5680-00-033-7057 · Item name not on file
5680-00-043-1294
5680-00-043-1294 · Item name not on file
5680-00-043-1295
5680-00-043-1295 · Item name not on file
5680-00-043-1296
5680-00-043-1296 · Item name not on file
5680-00-043-1297
5680-00-043-1297 · Item name not on file
Frequently Asked Questions
What is NSN 5680-01-455-4756?
NSN 5680-01-455-4756 is a Manhole Top Assembly, manufactured by Cen-Tex Marine Fabricators, Inc, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
What part numbers are listed for NSN 5680-01-455-4756?
NSN 5680-01-455-4756 has 1 manufacturer part number on file: 301 (Cen-Tex Marine Fabricators, Inc).
What are the specifications of 301?
Key specifications for 301: General Characteristics Item Description: 20 INCH OUTSIDE DIAMETER; 17.750 INSIDE DIAMETER; STEEL COVER IS 0.375 INCH THICK IN; End Item Identification: ONBOARD 87 FT WPB COAST GUARD VESSELS FT. 1 specification is documented in the U.S. Government catalog.
Is NSN 5680-01-455-4756 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.