Fastener Length: 4.047 INCHES MINIMUM AND 4.077 INCHES MAXIMUM IN
Thread Length: 0.375 INCHES NOMINAL IN
Nominal Thread Diameter: 0.312 INCHES IN
Head Style: FLAT COUNTERSUNK
Thread Direction: RIGHT-HAND
Specification/standard Data: 80205-NAS1155 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Grip Length: 3.677 INCHES MINIMUM AND 3.697 INCHES MAXIMUM IN
Identification
NSN: 5305-01-669-8197
NIIN: 016698197
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
General Description
The Screw,close Tolerance, cataloged under National Stock Number 5305-01-669-8197, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
5305-01-669-8197
Item Name
Screw,close Tolerance
FSC / FSG
5305 / 53 — Screws
Status
ACTIVE
Fastener Length
4.047 INCHES MINIMUM AND 4.077 INCHES MAXIMUM IN
Thread Length
0.375 INCHES NOMINAL IN
Nominal Thread Diameter
0.312 INCHES IN
Head Style
FLAT COUNTERSUNK
Thread Direction
RIGHT-HAND
Specification/standard Data
80205-NAS1155 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Grip Length
3.677 INCHES MINIMUM AND 3.697 INCHES MAXIMUM IN
Grip Diameter
0.3106 INCHES MINIMUM AND 0.3112 INCHES MAXIMUM IN
Minimum Tensile Strength
160000 POUNDS PER SQUARE INCH LBS
Internal Drive Style
OFFSET CRUCIFORM (TORQUE SET)
Countersink Angle
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
Thread Class
3A A
Thread Quantity Per Inch
24
Material
TITANIUM ALLOY UNS R56400 OVERALL
Thread Series Designator
UNIFIED NATIONAL JOINT FINE (UNJF)
Head Diameter
0.577 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-669-8331NAS1154V54POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-669-8367NAS1154V55POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-669-9541NAS1156V63POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-669-9607NAS1155V58POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-669-9614NAS1156V64POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
NAS1155V59
5/9Secondary reference
Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company
NAS1154V51
5/9Secondary reference
Howmet Global Fastening Systems Inc
NAS1155V59
3/2Design control — primary reference
U.S. Government activity
NAS1154V51
5/9Secondary reference
Sps Technologies Llc Dba PB Fasteners Div PB Fasteners
Related Parts
5305-01-669-8331POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
NAS1154V54
5305-01-669-8367POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
NAS1154V55
5305-01-669-9541POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
NAS1156V63
5305-01-669-9607POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
NAS1155V58
5305-01-669-9614POSSIBLE MATCH
SCREW,CLOSE TOLERANCE
NAS1156V64
Frequently Asked Questions
What is NSN 5305-01-669-8197?
NSN 5305-01-669-8197 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
What NSN replaces 5305-01-669-8197?
5 possible matches (shared part number, not a government interchangeability claim): 5305-01-669-8331, 5305-01-669-8367, 5305-01-669-9541. Verify interchangeability with system specifications before substitution.
What are the specifications of 5305-01-669-8197?
Key specifications for 5305-01-669-8197: Fastener Length: 4.047 INCHES MINIMUM AND 4.077 INCHES MAXIMUM IN; Thread Length: 0.375 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES IN; Head Style: FLAT COUNTERSUNK. 16 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-669-8197 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.