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3011838 — NIPPLE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3011838: NIPPLE,TUBE.

The NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347 OVERALL, leg_length: 0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM SECOND END IN, seat_angle: 37.000 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-730-7108, 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
3011838
NSN: 4730-00-730-7108
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL COMP 347 OVERALL
leg_length0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM SECOND END IN
seat_angle37.000 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
special_featuresTWO HOLES 0.042 TO 0.052 IN. DIA PARALLEL TO FLATS OF HEX IN
style_designatorFLARED W/ BULKHEAD THREAD
nominal_thread_size0.438 INCHES ALL ENDS IN
nominal_overall_length1.758 INCHES IN
thread_series_designatorUNF ALL ENDS
material_document_and_classificationAMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-730-7108
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3011838 · 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
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.758 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ BULKHEAD THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
LEG LENGTH: 0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.758 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORFLARED W/ BULKHEAD THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
LEG LENGTH0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM SECOND END IN
LEG LENGTH1.001 INCHES MINIMUM AND 1.041 INCHES MAXIMUM FIRST END IN
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SEAT ANGLE37.000 DEGREES ALL ENDS
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 3011838?
3011838 is a NIPPLE,TUBE.
What is the NSN for 3011838?
3011838 is cataloged in the U.S. Government catalog under NSN 4730-00-730-7108. 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.