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11634361 — RING,FIRST STAGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11634361: RING,FIRST STAGE.

The RING,FIRST STAGE is a the manufacturer industrial component. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.6920 INCHES NOMINAL IN, bore_diameter: 0.4550 INCHES NOMINAL IN, overall_height: 1.3750 INCHES NOMINAL IN, special_features: HOLE 0.140 IN. DIA LOCATED 0.325 IN.

ON CENTER FROM END IN. This part is cataloged in the U.S. Government catalog under NSN 5340-00-116-0435, 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
11634361
NSN: 5340-00-116-0435
NIINs: 001160435, 010244581
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.6920 INCHES NOMINAL IN
bore_diameter0.4550 INCHES NOMINAL IN
overall_height1.3750 INCHES NOMINAL IN
special_featuresHOLE 0.140 IN. DIA LOCATED 0.325 IN. ON CENTER FROM END IN
features_providedCASEHARDENED
first_step_length0.5000 INCHES NOMINAL IN
counterbore_length1.1650 INCHES NOMINAL IN
first_step_diameter0.1110 INCHES NOMINAL IN
third_step_diameter0.0900 INCHES NOMINAL IN
counterbore_diameter0.4560 INCHES NOMINAL IN
NSN5340-00-116-0435
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11634361 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
•
FIRST STEP DIAMETER: 0.1110 INCHES NOMINAL IN
•
END DIAMETER: 0.6920 INCHES NOMINAL IN
•
THIRD STEP DIAMETER: 0.0900 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.9750 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
COUNTERBORE LENGTH: 1.1650 INCHES NOMINAL IN
•
FEATURES PROVIDED: CASEHARDENED
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.3750 INCHES NOMINAL IN
FIRST STEP DIAMETER0.1110 INCHES NOMINAL IN
END DIAMETER0.6920 INCHES NOMINAL IN
THIRD STEP DIAMETER0.0900 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.9750 INCHES NOMINAL IN
DESIGN TYPESOLID
COUNTERBORE LENGTH1.1650 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
SECOND STEP DIAMETER1.3750 INCHES NOMINAL IN
COUNTERBORE DIAMETER0.4560 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
2S8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11634361?
11634361 is a RING,FIRST STAGE.
What parts can replace 11634361?
There is 1 known substitute for 11634361: 2S8. Substitute compatibility should be verified for your specific system.
What is the NSN for 11634361?
11634361 is cataloged in the U.S. Government catalog under NSN 5340-00-116-0435. 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.