PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P577Screw,machine

Bae Systems Land & Armaments L.p. · NSN 5305-00-015-6241 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-015-6241 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-015-6241. Primary manufacturer part number: P577.
Features
  • Screw,machine — FSC 5305
  • Screw Material: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
  • Head Style: FLAT COUNTERSUNK
  • Screw Material Document and Classification: QQ-S-633 FED SPEC ALL MATERIAL RESPONSES
  • Thread Length: 0.347 INCHES MINIMUM IN
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-015-6241, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-015-6241
Primary Part NumberP577
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBae Systems Land & Armaments L.p.
StatusACTIVE
Screw MaterialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Head StyleFLAT COUNTERSUNK
Screw Material Document and ClassificationQQ-S-633 FED SPEC ALL MATERIAL RESPONSES
Thread Length0.347 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Internal Drive StyleCROSS RECESS TYPE 1
Thread Quantity Per Inch20
Thread Class2A A
Nominal Thread Diameter0.250 INCHES IN
Fastener Length0.500 INCHES NOMINAL IN
Nondefinitive Spec/std DataIII TYPE AND 2C STYLE
Head Diameter0.477 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
Screw Surface TreatmentCADMIUM OR ZINC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5815-00-007-4008324222 INTERCHANGEABLE
Link with Nuts
Alnitak Corporation
6685-01-334-32056241 INTERCHANGEABLE
Plug,set
Newport Scientific Inc Hygrodynamic Products Div
Cross-Reference Index
Part NumberManufacturer
156241 General Motors Llc Dba General Motors Llc (USA)
156241 General Motors Corp (USA)
P577 PRIMARY Bae Systems Land & Armaments L.p. (USA)
P577 Fmc Corp (USA)
FFS92TYPE3STYLE2C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5815-00-007-4008INTERCHANGEABLE
LINK WITH NUTS
324222
6685-01-334-3205INTERCHANGEABLE
PLUG,SET
6241

Frequently Asked Questions

What is NSN 5305-00-015-6241?

NSN 5305-00-015-6241 is a Screw,machine, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-015-6241?

NSN 5305-00-015-6241 has 5 cross-referenced part numbers: 156241 (General Motors Llc Dba General Motors Llc), 156241 (General Motors Corp), P577 (Bae Systems Land & Armaments L.p.), P577 (Fmc Corp), FFS92TYPE3STYLE2C (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-015-6241?

There are 2 known substitutes for 5305-00-015-6241: 5815-00-007-4008, 6685-01-334-3205. Verify interchangeability with system specifications before substitution.

What are the specifications of P577?

Key specifications for P577: Screw Material: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM; Head Style: FLAT COUNTERSUNK. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com