NSN 5305-00-217-7709 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-217-7709. Manufacturer of record part number: 179181.
Also searched as5305-00-217-7709 ·
5305002177709 ·
NIIN 002177709 ·
00-217-7709 ·
FSC 5305 Screws · CAGE 77445 · 179181
Fastener Length: 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
Thread Length: 0.490 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Nominal Thread Diameter: 0.312 INCHES IN
Head Style: FLAT COUNTERSUNK
Thread Direction: RIGHT-HAND
Identification
NSN: 5305-00-217-7709
NIIN: 002177709
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 179181
Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
General Description
The Screw,machine, cataloged under National Stock Number 5305-00-217-7709, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 14 specifications, 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. 4 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
5305-00-217-7709
Primary Part Number
179181
Item Name
Screw,machine
FSC / FSG
5305 / 53 — Screws
Manufacturer
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Status
ACTIVE
Screw Surface Treatment
CADMIUM
Fastener Length
0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
Thread Length
0.490 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
Hardness Rating
26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Nominal Thread Diameter
0.312 INCHES IN
Head Style
FLAT COUNTERSUNK
Thread Direction
RIGHT-HAND
Screw Material
STEEL
Internal Drive Style
CROSS RECESS TYPE 1
Countersink Angle
82.0 DEGREES NOMINAL
Thread Class
3A A
Thread Quantity Per Inch
24
Thread Series Designator
UNF
Head Diameter
0.477 INCHES MINIMUM AND 0.507 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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6150-01-603-8867179181-3POSSIBLE MATCH
CABLE ASSEMBLY,POWER,ELECTRICAL
Possible match (shared part number)Drs Network & Imaging Systems, Llc Dba Drs Technologies
5995-01-604-1325179181-1POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
Possible match (shared part number)Ace Electronics Defense Systems, Llc Dba Ace Electronics Defense Systems Llc
5995-01-628-4544179181-5POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
Possible match (shared part number)Ace Electronics Defense Systems, Llc Dba Ace Electronics Defense Systems Llc
5995-01-684-2728179181-2POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
Possible match (shared part number)Ace Electronics Defense Systems, Llc Dba Ace Electronics Defense Systems Llc
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
6150-01-603-8867POSSIBLE MATCH
CABLE ASSEMBLY,POWER,ELECTRICAL
179181-3
5995-01-604-1325POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
179181-1
5995-01-628-4544POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
179181-5
5995-01-684-2728POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
179181-2
Frequently Asked Questions
What is NSN 5305-00-217-7709?
NSN 5305-00-217-7709 is a Screw,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-00-217-7709?
NSN 5305-00-217-7709 has 1 manufacturer part number on file: 179181 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
What NSN replaces 5305-00-217-7709?
4 possible matches (shared part number, not a government interchangeability claim): 6150-01-603-8867, 5995-01-604-1325, 5995-01-628-4544. Verify interchangeability with system specifications before substitution.
What are the specifications of 179181?
Key specifications for 179181: Screw Surface Treatment: CADMIUM; Fastener Length: 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN; Thread Length: 0.490 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. 14 specifications are documented in the U.S. Government catalog.
Is NSN 5305-00-217-7709 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.