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5003960 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5003960: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, fastener_length: 4.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-167-5004, 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
5003960
NSN: 5330-00-167-5004
NIINs: 001675004, 010545950
FSC: 5330 — Packing and Gasket Materials
CAGE: 0B9R9 — MEGGITT AIRCRAFT BRAKING SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
fastener_length4.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5330-00-167-5004
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5003960 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
•
SEAL WIDTH: 0.273 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT DIAMETER: 9.933 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.273 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER9.933 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CONSTRUCTIONSOLID
SUBSTITUTES & CROSS-REFERENCES 1
5000941Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5003960?
5003960 is a SEAL,PLAIN.
What parts can replace 5003960?
There is 1 known substitute for 5003960: 5000941. Substitute compatibility should be verified for your specific system.
What is the NSN for 5003960?
5003960 is cataloged in the U.S. Government catalog under NSN 5330-00-167-5004. 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.