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450138 — GEAR,SPUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

450138: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SPRING, case_style: SQUARE, seal_width: 0.500 INCHES NOMINAL IN, housing_bore_diameter: 2.686 INCHES NOMINAL IN, sealing_element_style: VERTICAL, accommodated_shaft_diameter: 1.937 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-020-9341, 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
450138
NSN: 5340-00-020-9341
NIINs: 000209341, 009081685, 012954060
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SPRING
case_styleSQUARE
seal_width0.500 INCHES NOMINAL IN
housing_bore_diameter2.686 INCHES NOMINAL IN
sealing_element_styleVERTICAL
accommodated_shaft_diameter1.937 INCHES NOMINAL IN
NSN5340-00-020-9341
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 450138 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
•
SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH: 0.312 INCHES NOMINAL IN
•
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH: 0.250 INCHES NOMINAL IN
•
FIRST LEG HOLE DIAMETER: 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
•
FIRST LEG ANGLE: 90.0 DEGREES NOMINAL
•
SECOND LEG RELATIONSHIP TO FIRST LEG: NOT IDENTICAL
•
SECOND LEG HOLE DIAMETER: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
SECOND LEG WIDTH: 1.655 INCHES NOMINAL IN
•
SECOND LEG LENGTH: 1.081 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH0.312 INCHES NOMINAL IN
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH0.250 INCHES NOMINAL IN
FIRST LEG HOLE DIAMETER0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
FIRST LEG ANGLE90.0 DEGREES NOMINAL
SECOND LEG RELATIONSHIP TO FIRST LEGNOT IDENTICAL
SECOND LEG HOLE DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
SECOND LEG WIDTH1.655 INCHES NOMINAL IN
SECOND LEG LENGTH1.081 INCHES NOMINAL IN
FIRST LEG HOLE ARRANGEMENT STYLEONE HOLE
SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG WIDTH0.312 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 450138?
450138 is a GEAR,SPUR.
What is the NSN for 450138?
450138 is cataloged in the U.S. Government catalog under NSN 5340-00-020-9341. 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.