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3S30023-129 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3S30023-129: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1141 OVERALL, seat_angle: 12.0 DEGREES, head_height: 0.281 INCHES NOMINAL IN, thread_class: 3A EXTERNAL A, overall_length: 0.843 INCHES NOMINAL IN, connection_style: FLARELESS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-202-8341, 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
3S30023-129
NSN: 4730-00-202-8341
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1141 OVERALL
seat_angle12.0 DEGREES
head_height0.281 INCHES NOMINAL IN
thread_class3A EXTERNAL A
overall_length0.843 INCHES NOMINAL IN
connection_styleFLARELESS
style_designatorPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.750 INCHES EXTERNAL IN
end_item_identification2350-01-031-8851
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) EXTERNAL
NSN4730-00-202-8341
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3S30023-129 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.281 INCHES NOMINAL IN
•
CONNECTION STYLE: FLARELESS
•
STYLE DESIGNATOR: PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 0.750 INCHES EXTERNAL IN
•
SEAT ANGLE: 12.0 DEGREES
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES NOMINAL IN
CONNECTION STYLEFLARELESS
STYLE DESIGNATORPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.843 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE0.750 INCHES EXTERNAL IN
SEAT ANGLE12.0 DEGREES
SPECIFICATION/STANDARD DATA96906-MS21913 GOVERNMENT STANDARD
SURFACE TREATMENTCADMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
MS21913-8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
4730002028341Reference document
Same NSN cross-reference
Reference document — Informative reference only
AS18280Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-18280Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS21913-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3S30023-129?
3S30023-129 is a PLUG,TUBE FITTING,THREADED.
What parts can replace 3S30023-129?
There are 5 known substitutes for 3S30023-129: MS21913-8, 4730002028341, AS18280 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3S30023-129?
3S30023-129 is cataloged in the U.S. Government catalog under NSN 4730-00-202-8341. 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.