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231MS025P9 — STAY,LOCKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

231MS025P9: STAY,LOCKING.

The STAY,LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, overall_width: 0.609 INCHES MINIMUM AND 0.741 INCHES MAXIMUM IN, overall_length: 7.969 INCHES MINIMUM AND 8.031 INCHES MAXIMUM IN, style_designator: FRICTION TYPE, features_provided: RETAINING LUG, surface_treatment: PASSIVATE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-849-3343, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
231MS025P9
NSN: 5340-00-849-3343
FSC: 5340 — Hardware, Commercial
CAGE: 17401 — ELECTRO FREETO MANUFACTURING COMPANY INC (USA)
SPECIFICATIONS
materialSTEEL COMP 302
overall_width0.609 INCHES MINIMUM AND 0.741 INCHES MAXIMUM IN
overall_length7.969 INCHES MINIMUM AND 8.031 INCHES MAXIMUM IN
offset_quantity1
style_designatorFRICTION TYPE
features_providedRETAINING LUG
surface_treatmentPASSIVATE
material_thickness0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
operational_directionRIGHT-HAND
mounting_hole_diameter0.308 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-7720 COND A MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-849-3343
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 231MS025P9 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OPERATIONAL DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: FRICTION TYPE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 COND A MIL SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.308 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
•
OFFSET QUANTITY: 1
•
FEATURES PROVIDED: RETAINING LUG
TECHNICAL CHARACTERISTICS
OPERATIONAL DIRECTIONRIGHT-HAND
STYLE DESIGNATORFRICTION TYPE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 COND A MIL SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.308 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
OVERALL LENGTH7.969 INCHES MINIMUM AND 8.031 INCHES MAXIMUM IN
OVERALL WIDTH0.609 INCHES MINIMUM AND 0.741 INCHES MAXIMUM IN
OFFSET QUANTITY1
FEATURES PROVIDEDRETAINING LUG
MATERIAL THICKNESS0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 231MS025P9?
231MS025P9 is a STAY,LOCKING.
What is the NSN for 231MS025P9?
231MS025P9 is cataloged in the U.S. Government catalog under NSN 5340-00-849-3343. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.