PartsTable
Technical Data Sheet
TYPE3SIZE5 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include design_type: THREADED, thread_class: 3A A, overall_diameter: 1.000 INCHES NOMINAL IN, features_provided: SHOULDER, nondefinitive_spec/std_data: 3 TYPE AND 5 SIZE, thread_size_and_series/type_designator: 1/2-20 UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-286-4147, 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
TYPE3SIZE5
NSN: 5340-00-286-4147
FSC: 5340
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
design_typeTHREADED
thread_class3A A
overall_diameter1.000 INCHES NOMINAL IN
features_providedSHOULDER
nondefinitive_spec/std_data3 TYPE AND 5 SIZE
thread_size_and_series/type_designator1/2-20 UNF
NSN5340-00-286-4147
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: TYPE3SIZE5 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
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/2-20 UNF
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 5 SIZE
THREAD CLASS: 3A A
OVERALL DIAMETER: 1.000 INCHES NOMINAL IN
DESIGN TYPE: THREADED
FEATURES PROVIDED: SHOULDER
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/2-20 UNF
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 5 SIZE
THREAD CLASS3A A
OVERALL DIAMETER1.000 INCHES NOMINAL IN
DESIGN TYPETHREADED
FEATURES PROVIDEDSHOULDER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
M5501/1-R6Upgraded Successor
successor cross-reference
successor
MILC5501Upgraded Successor
successor cross-reference
successor
MIL-C-5501/1Upgraded Successor
successor cross-reference
successor
M5501/1-R8Upgraded Successor
successor cross-reference
successor
NAS847 MIL-C-5501G-9Upgraded Successor
successor cross-reference
successor
NAS844-12Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TYPE3SIZE5?
TYPE3SIZE5 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace TYPE3SIZE5?
There are 19 known substitutes for TYPE3SIZE5: M5501/1-R6, MILC5501, MIL-C-5501/1 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TYPE3SIZE5?
TYPE3SIZE5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-286-4147. This indicates validated use in U.S. government and defense supply chains.
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