Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SPECIAL TEST FEATURES
Identification
NSN: 5305-01-055-5587
NIIN: 010555587
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
General Description
The Setscrew, cataloged under National Stock Number 5305-01-055-5587, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5305-01-055-5587
Item Name
Setscrew
FSC / FSG
5305 / 53 — Screws
Status
ACTIVE
Width Across Flats
0.050 INCHES NOMINAL IN
Fastener Length
0.120 INCHES NOMINAL IN
Special Test Features
M1L-Q-21549B-SP24-1
Thread Length
0.120 INCHES NOMINAL IN
Thread Class
3A A
Reference Number Differentiating Characteristics
AS DIFFERENTIATED BY SPECIAL TEST FEATURES
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
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
2451689-2
3/1Design control — primary reference
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
No interchangeability data on file.
Other items in FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016
5305-00-001-5016 · Item name not on file
5305-00-001-9160
5305-00-001-9160 · Item name not on file
5305-00-001-9629
SCREW,ADJUSTING CLEVIS
5305-00-001-9742
5305-00-001-9742 · Item name not on file
5305-00-001-9768
SCREW,CAP,SOCKET HEAD
5305-00-003-4306
SCREW,MACHINE
5305-00-003-6694
5305-00-003-6694 · Item name not on file
5305-00-003-6753
5305-00-003-6753 · Item name not on file
Frequently Asked Questions
What is NSN 5305-01-055-5587?
NSN 5305-01-055-5587 is a Setscrew, classified under FSC 5305, Screws. Status: active.
What are the specifications of 5305-01-055-5587?
Key specifications for 5305-01-055-5587: Width Across Flats: 0.050 INCHES NOMINAL IN; Fastener Length: 0.120 INCHES NOMINAL IN; Special Test Features: M1L-Q-21549B-SP24-1; Thread Length: 0.120 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-055-5587 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.