NSN 5305-01-652-8645 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-652-8645. Manufacturer of record part number: RB56638-2.
Also searched as5305-01-652-8645 ·
5305016528645 ·
NIIN 016528645 ·
01-652-8645 ·
FSC 5305 Screws · CAGE 51663 · RB56638-2
Nearby stock numbers← 5305-01-652-8608 Screw, Close Tolerance
·
5305-01-652-8652 Screw, Cap, Hexagon Head →
5305-01-652-8645 — Screws
Features
Screw,machine — FSC 5305
Screw Surface Treatment: TIN
Nominal Thread Diameter: 0.138 INCHES IN
Thread Quantity Per Inch: 32
Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
Head Diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
1 manufacturer part number on file
Manufacturer of record: Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec
Identification
NSN: 5305-01-652-8645
NIIN: 016528645
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: RB56638-2
Manufacturer: Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec
General Description
The Screw,machine, cataloged under National Stock Number 5305-01-652-8645, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 5 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5305-01-652-8645
Primary Part Number
RB56638-2
Item Name
Screw,machine
FSC / FSG
5305 / 53 — Screws
Manufacturer
Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec
Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA)
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.
5305-00-000-0094
SCREW,CLOSE TOLERANCE
5305-00-000-0094
SCREW,CLOSE TOLERANCE
5305-00-000-0094
SCREW,CLOSE TOLERANCE
5305-00-000-1397
5305-00-000-1397 · Item name not on file
5305-00-000-2625
5305-00-000-2625 · Item name not on file
5305-00-000-3669
5305-00-000-3669 · Item name not on file
5305-00-000-3830
5305-00-000-3830 · Item name not on file
5305-00-000-3831
5305-00-000-3831 · Item name not on file
Frequently Asked Questions
What is NSN 5305-01-652-8645?
NSN 5305-01-652-8645 is a Screw,machine, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-652-8645?
NSN 5305-01-652-8645 has 1 manufacturer part number on file: RB56638-2 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
What are the specifications of RB56638-2?
Key specifications for RB56638-2: Screw Surface Treatment: TIN; Nominal Thread Diameter: 0.138 INCHES IN; Part Name Assigned by Controlling Agency: SCREW,RD.HD.ELECT; Thread Quantity Per Inch: 32. 5 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-652-8645 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.