The Washer,flat, cataloged under National Stock Number 5310-00-186-1381, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-186-1381 |
| Primary Part Number | 831978-10 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | CANCELLED |
| Thickness | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Material | LEATHER OVERALL |
| Center Hole Shape Style | ROUND |
| Overall Diameter | 1.012 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Hole Diameter | 0.742 INCHES MINIMUM AND 0.757 INCHES MAXIMUM IN |
| Peripheral Shape Style | ROUND |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 831978-10 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| B-FF-10 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2216LS-10 | Houghton Intl Inc (USA) |
| 7419682 | Liebherr-Aerospace Lindenberg Gmbh (DEU) |
| 25704-281200-59-0 | Knds Deutschland Gmbh & Co. Kg - Werk Kassel - (DEU) |
| LS-40-10 | Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA) |
| 5310001861381 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 25704-281200-59-0 | Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke (DEU) |
| 5330001861381 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 228689 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| MS28777-10 | Liebherr-Aerospace Lindenberg Gmbh (DEU) |
| MS28777-10 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| AN6291-10 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| AN6291-10 | Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group |
| 5310PL0150156 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 7419682 | Feinmechanische Werke Mainz Gmbh (DEU) |
| 287-1149P7 | Raytheon Co Equipment Development Lab (USA) |
| 7419682 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| XLLM212-10 | Excelsior, Inc. (USA) |
| MS28777-10 | Feinmechanische Werke Mainz Gmbh (DEU) |
NSN 5310-00-186-1381 is a Washer,flat, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-186-1381 has 24 cross-referenced part numbers: 831978-10 (Lockheed Martin Corporation Div Rms - Mitchel Field), B-FF-10 (Parker-Hannifin Corp Div O-Ring Division), 2216LS-10 (Houghton Intl Inc), 7419682 (Liebherr-Aerospace Lindenberg Gmbh), 25704-281200-59-0 (Knds Deutschland Gmbh & Co. Kg - Werk Kassel -) and 19 more.
There are 3 known substitutes for 5310-00-186-1381: 5985-00-630-6594, 5961-00-847-6841, 4930-01-619-3298. Verify interchangeability with system specifications before substitution.
Key specifications for 831978-10: Thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Material: LEATHER OVERALL; Center Hole Shape Style: ROUND; Overall Diameter: 1.012 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-186-1381 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.