The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-400-5503, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hensoldt Sensors Gmbh Div Seps. Government technical data includes 15 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through both NSN and commercial part number lookups. 22 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-400-5503 |
| Primary Part Number | 5M.3113.223.03 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hensoldt Sensors Gmbh Div Seps |
| Status | CANCELLED |
| Width Across Flats | 0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Material Document and Classification | 66,COMP 300 SERIES FED STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Departure From Cited Designator | AS MODIFIED BY MATERIAL |
| Nondefinitive Spec/std Data | 2 TYPE AND 13 STYLE |
| Nut Height | 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP W214 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP M3 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL |
| Bearing Surface Type | FLAT OR CHAMFERED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5M.3113.223.03 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| Reference | Meaning |
|---|---|
| 30285-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 946282-2414 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| MS35650-3254 | 5/9 Secondary reference Fastening Products of Lancaster, Inc. |
| MS35650-3254 | 5/1 Secondary reference Dialogic Corp Dba Dialogic Fasteners |
| 10121368 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5310004005503 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 411116-3254 | 5/2 Secondary reference U.S. Government activity |
| 100-16SS | C/1 Advisory reference — outside the item-of-supply concept Honeywell Intl Inc Defense Avionics Systems |
| NASM35650 | 3/1 Design control — primary reference U.S. Government activity |
| 911C208-54 | 5/2 Secondary reference U.S. Government activity |
| MS35650-3254 | 3/2 Design control — primary reference U.S. Government activity |
| FFN836 | 4/1 Identification reference U.S. Government activity |
| MS35650-3254 | 5/9 Secondary reference U.S. Government activity |
| 114-0645-006 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 31257 | C/1 Advisory reference — outside the item-of-supply concept Barnes Group Inc. Dba Barnes Distribution |
| 13218E0320-91 | 5/2 Secondary reference U.S. Government activity |
| P313-0084-000 | 5/9 Secondary reference Allied Products Corp Pheoll Mfg Co Div |
| 911C208-54 | 5/9 Secondary reference U.S. Government activity |
| A50901-016 | 5/9 Secondary reference Incom Intl Inc Morse Controls Div |
| 13218E0320 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-00-400-5503 is a Nut,plain,hexagon, manufactured by Hensoldt Sensors Gmbh Div Seps, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-400-5503 has 1 manufacturer part number on file: 5M.3113.223.03 (Hensoldt Sensors Gmbh Div Seps).
7 possible matches (shared part number, not a government interchangeability claim): 5310-00-471-9115, 5910-00-519-9134, 4820-00-542-2370. Verify interchangeability with system specifications before substitution.
Key specifications for 5M.3113.223.03: Width Across Flats: 0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Material Document and Classification: 66,COMP 300 SERIES FED STD ALL MATERIAL RESPONSES OVERALL. 15 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5310-00-400-5503 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.