PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-27143-APART4Screw,cap,hexagon Head

Mecs, Inc. Div Elessent Clean Technologies · NSN 5305-01-585-9282 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-585-9282 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-585-9282. Primary manufacturer part number: B-27143-APART4.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • Precious Material: GOLD
  • 2 verified cross-references
  • Primary manufacturer: Mecs, Inc. Div Elessent Clean Technologies
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-585-9282, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mecs, Inc. Div Elessent Clean Technologies. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-585-9282
Primary Part NumberB-27143-APART4
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMecs, Inc. Div Elessent Clean Technologies
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Precious MaterialGOLD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-207-82531/4-20 X 1 HEX INTERCHANGEABLE
Screw,cap,hexagon Head
Nyf/new York Fasteners/corp
5305-01-317-9818AES01C250A00AA9LP7 INTERCHANGEABLE
Screw,cap,hexagon Head
American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-321-3497645A560H55 INTERCHANGEABLE
Screw,cap,hexagon Head
Northrop Grumman Support Services Corp
Cross-Reference Index
Part NumberManufacturer
B-27143-APART4 Mecs, Inc. Div Elessent Clean Technologies (USA)
MS35307-308 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
5305-00-207-8253INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
1/4-20 X 1 HEX
5305-01-317-9818INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C250A00AA9LP7
5305-01-321-3497INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
645A560H55

Frequently Asked Questions

What is NSN 5305-01-585-9282?

NSN 5305-01-585-9282 is a Screw,cap,hexagon Head, manufactured by Mecs, Inc. Div Elessent Clean Technologies, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-585-9282?

NSN 5305-01-585-9282 has 2 cross-referenced part numbers: B-27143-APART4 (Mecs, Inc. Div Elessent Clean Technologies), MS35307-308 (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 5305-01-585-9282?

There are 3 known substitutes for 5305-01-585-9282: 5305-00-207-8253, 5305-01-317-9818, 5305-01-321-3497. Verify interchangeability with system specifications before substitution.

What are the specifications of B-27143-APART4?

Key specifications for B-27143-APART4: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY; Precious Material: GOLD. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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