The O-Ring, cataloged under National Stock Number 5331-00-421-9429, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-421-9429 |
| Primary Part Number | S9412-237 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix |
| Status | ACTIVE |
| Center Hole Diameter | 3.335 INCHES MINIMUM AND 3.383 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| Outside Diameter | 3.637 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S9412-237 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA) |
| MIL-DTL-25988/2 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M25988/2-237 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-R-25988B | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5331-00-421-9429 is a O-Ring, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-421-9429 has 4 cross-referenced part numbers: S9412-237 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), MIL-DTL-25988/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M25988/2-237 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-25988B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 9 known substitutes for 5331-00-421-9429: 5330-00-153-1041, 5331-00-211-8040, 5331-00-351-6971 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for S9412-237: Center Hole Diameter: 3.335 INCHES MINIMUM AND 3.383 INCHES MAXIMUM IN; Material: RUBBER FLUOROSILICONE CLASS FQ; Outside Diameter: 3.637 INCHES NOMINAL IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.