The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-731-2028, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-731-2028 |
| Primary Part Number | 7312028 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.340 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Countersink Angle | 83.0 DEGREES MINIMUM AND 85.0 DEGREES MAXIMUM |
| Externally Relieved Body Diameter Quantity | 1 |
| Material Document and Classification | ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A675 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PHOSPHATE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Material | STEEL COMP 1035 OVERALL |
| Thread Length | 0.160 INCHES MINIMUM IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Hardness Rating | 47.0 ROCKWELL C NOMINAL OVERALL |
| Thread Series Designator | UNF |
| Thread Quantity Per Inch | 28 |
| Head Style | FLAT COUNTERSUNK |
| Head Diameter | 0.455 INCHES NOMINAL IN |
| First Diameter From Head | 0.200 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 53057312028 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5305007312028 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 1005-731-2028 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 201010030 | Samsun Yurt Sav.san. Ve Tic.a.s. (TUR) |
| 3662001641 | Fn Herstal Dba Fabrique Nationale Nouvelle Herstal (BEL) |
| 366-200-1641 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 10074183 | Nimikkeistokeskus Ncb Finland (FIN) |
| 7312028 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| 5305PL0954026 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| A10587 | Fnh Uk Ltd (GBR) |
| 7312028 | Springfield Armory (USA) |
| 75F6202 | Giat Industries Centre De Tulle (FRA) |
NSN 5305-00-731-2028 is a Screw,externally Relieved Body, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-731-2028 has 12 cross-referenced part numbers: 53057312028 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 5305007312028 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 1005-731-2028 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 201010030 (Samsun Yurt Sav.san. Ve Tic.a.s.), 3662001641 (Fn Herstal Dba Fabrique Nationale Nouvelle Herstal) and 7 more.
There are 2 known substitutes for 5305-00-731-2028: 4720-00-277-3411, 5998-01-447-1953. Verify interchangeability with system specifications before substitution.
Key specifications for 7312028: Distance From Largest Bearing Surface of Head to End of First Diameter: 0.340 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Class: 2A A; Countersink Angle: 83.0 DEGREES MINIMUM AND 85.0 DEGREES MAXIMUM. 18 total characteristics are documented in the Federal Logistics Information System.