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Technical Data Sheet
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20137-1 — LEVER,SEAT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

20137-1: LEVER,SEAT.

The LEVER,SEAT is a the manufacturer industrial component. Key specifications include end_item_identification: 4940-01-680-2383, part_name_assigned_by_controlling_agency: EXPANDABLE SIDE WALL LT. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-946-8344, 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
20137-1
NSN: 5330-00-946-8344
NIINs: 009468344, 010916101, 011524290, 012853575, 017054976, 017327452
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
end_item_identification4940-01-680-2383
part_name_assigned_by_controlling_agencyEXPANDABLE SIDE WALL LT
NSN5330-00-946-8344
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20137-1 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
•
CROSS-SECTIONAL THICKNESS: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BC815C1E3 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 1.000 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BC815C1E3 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.281 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH1.281 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
APERTURE DIAMETER1.000 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH0.959 INCHES MINIMUM AND 0.979 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 10
8505837Reference document
Same NSN cross-reference
Reference document — Secondary reference
5422-1/2INReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
10-36675-16Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
66860Reference document
Same NSN cross-reference
Reference document — Secondary reference
10-40450-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
45559-016Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20137-1?
20137-1 is a LEVER,SEAT.
What parts can replace 20137-1?
There are 10 known substitutes for 20137-1: 8505837, 5422-1/2IN, 10-36675-16 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20137-1?
20137-1 is cataloged in the U.S. Government catalog under NSN 5330-00-946-8344. 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.