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129603A — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

129603A: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, leg_length: 2.036 INCHES NOMINAL SECOND END IN, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 2A 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 4730-01-221-7326, 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
129603A
NSN: 4730-01-221-7326
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
leg_length2.036 INCHES NOMINAL SECOND END IN
seat_angle37.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
nominal_thread_size1.312 INCHES SECOND END IN
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
nondefinitive_spec/std_data5B FIGURE
specification/standard_data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_outside_diameter_tube_accommodated1.250 INCHES THIRD END IN
NSN4730-01-221-7326
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 129603A · 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
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES THIRD END IN
•
LEG LENGTH: 2.036 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.250 INCHES THIRD END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
LEG LENGTH2.036 INCHES NOMINAL FIRST END IN
LEG LENGTH2.036 INCHES NOMINAL SECOND END IN
LEG LENGTH2.078 INCHES NOMINAL THIRD END IN
NOMINAL THREAD SIZE1.625 INCHES THIRD END IN
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
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 6
SAE-J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE J514 16-16-20 070401CAReference document
Same NSN cross-reference
Reference document — Secondary reference
16-16-20JBTXSReference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-J514/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
16-16-20 070401CAReference document
Same NSN cross-reference
Reference document — Secondary reference
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 129603A?
129603A is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 129603A?
There are 6 known substitutes for 129603A: SAE-J514, SAE J514 16-16-20 070401CA, 16-16-20JBTXS and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 129603A?
129603A is cataloged in the U.S. Government catalog under NSN 4730-01-221-7326. 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.