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ST9M454-5-1 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BOLT ASSEMBLY,CLAMP is a the manufacturer industrial component. Key specifications include thread_class: 2A A, thread_length: 1.000 INCHES MINIMUM IN, mounting_method: BOLT, style_designator: KNURLED NO. 2, thread_direction: RIGHT-HAND, surface_treatment: UNABLE TO DECODE.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-368-6135, 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
ST9M454-5-1
NSN: 5340-01-368-6135
FSC: 5340
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
thread_class2A A
thread_length1.000 INCHES MINIMUM IN
mounting_methodBOLT
style_designatorKNURLED NO. 2
thread_directionRIGHT-HAND
surface_treatmentUNABLE TO DECODE
nominal_thread_size0.312 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNF
mounting_facility_quantity1
material_document_and_classificationUNABLE TO DECODE
surface_treatment_document_and_classificationUNABLE TO DECODE
NSN5340-01-368-6135
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST9M454-5-1 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
MOUNTING METHOD: BOLT
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
SURFACE TREATMENT: UNABLE TO DECODE
•
THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: KNURLED NO. 2
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
MOUNTING METHODBOLT
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
NOMINAL THREAD SIZE0.312 INCHES IN
SURFACE TREATMENTUNABLE TO DECODE
THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATORKNURLED NO. 2
END ITEM IDENTIFICATIONW/S:AIRCRAFT, THUNDERBOLT II, A-10; AIRCRAFT, B-2 BOMBER (ATB); HELICOPTER,HH-53H PAVE LOW; F/A-18E/F HORNET AIRCRAFT; AIRCRAFT,(AC-130H, MC-130H,EC-130E, HC-130); AIRCRAFT, HORNET F/A-18; MISSILE, PATRIOT; HELICOPTER, UH-60A/UH-60D; AIRCRAFT, HARRIER AV-8B; AIRCRAFT, EAGLE F-15; ARMORED MULTI-PURPOSE VEHICLE (AMPV) A
MOUNTING FACILITY QUANTITY1
THREAD LENGTH1.000 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
902005Upgraded Successor
successor cross-reference
successor
MIL-F-85731Upgraded Successor
successor cross-reference
successor
MS14108-15Upgraded Successor
successor cross-reference
successor
LL-H58-4203Upgraded Successor
successor cross-reference
successor
500019Upgraded Successor
successor cross-reference
successor
84199-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST9M454-5-1?
ST9M454-5-1 is a BOLT ASSEMBLY,CLAMP.
What parts can replace ST9M454-5-1?
There are 18 known substitutes for ST9M454-5-1: 902005, MIL-F-85731, MS14108-15 and 15 more. Substitute compatibility should be verified for your specific system.
Is ST9M454-5-1 still available?
ST9M454-5-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026