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5139995 — DISK,SOLID,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5139995: DISK,SOLID,PLAIN.

The DISK,SOLID,PLAIN is a the manufacturer industrial component. Key specifications include diameter: 0.127 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, material: STEEL, thickness: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN, machined_surface_finish: SEMISMOOTH, material_document_and_classification: MIL-S-11415 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-513-9995, 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
5139995
NSN: 5340-00-513-9995
FSC: 5340 — Hardware, Commercial
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
diameter0.127 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
materialSTEEL
thickness0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
machined_surface_finishSEMISMOOTH
material_document_and_classificationMIL-S-11415 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-513-9995
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5139995 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
•
MACHINED SURFACE FINISH: SEMISMOOTH
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-11415 MIL SPEC SINGLE MATERIAL RESPONSE
•
DIAMETER: 0.127 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
THICKNESS: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MACHINED SURFACE FINISHSEMISMOOTH
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-11415 MIL SPEC SINGLE MATERIAL RESPONSE
DIAMETER0.127 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
MATERIALSTEEL
THICKNESS0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
A20539Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5340005139995Reference document
Same NSN cross-reference
Reference document — Informative reference only
A16743Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5139995?
5139995 is a DISK,SOLID,PLAIN.
What parts can replace 5139995?
There are 3 known substitutes for 5139995: A20539, 5340005139995, A16743. Substitute compatibility should be verified for your specific system.
What is the NSN for 5139995?
5139995 is cataloged in the U.S. Government catalog under NSN 5340-00-513-9995. 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.