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Technical Data Sheet

MIL-C-5501/4 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MIL-C-5501/4: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, seat_angle: 37.0 DEGREES, head_height: 0.250 INCHES NOMINAL IN, thread_class: 3A EXTERNAL A, overall_length: 0.812 INCHES NOMINAL IN, connection_style: FLARED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-804-0757, 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
MIL-C-5501/4
NSN: 5340-00-804-0757
NIINs: 008040757, 012828313, 015481236
FSC: 5340 — Hardware, Commercial
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
seat_angle37.0 DEGREES
head_height0.250 INCHES NOMINAL IN
thread_class3A EXTERNAL A
overall_length0.812 INCHES NOMINAL IN
connection_styleFLARED
special_features304 STAINLESS STEEL; ALSO USED AS CAP, PROTECTIVE DUST
style_designatorPLUG, TUBE FITTING FLARED (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentPASSIVATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
nominal_thread_size0.562 INCHES EXTERNAL IN
NSN5340-00-804-0757
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-C-5501/4 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
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 0.813 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.625 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 4 TYPE AND A CLASS AND 10 SIZE
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER0.813 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.625 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA4 TYPE AND A CLASS AND 10 SIZE
SUBSTITUTES & CROSS-REFERENCES 1
M5501/4-R10Same 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 MIL-C-5501/4?
MIL-C-5501/4 is a PLUG,TUBE FITTING,THREADED.
What parts can replace MIL-C-5501/4?
There is 1 known substitute for MIL-C-5501/4: M5501/4-R10. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-C-5501/4?
MIL-C-5501/4 is cataloged in the U.S. Government catalog under NSN 5340-00-804-0757. 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.