PartsTable
Technical Data Sheet
903158C1 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The FLANGE,PIPE,SWIVEL RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.562 INCHES NOMINAL IN, neck_height: 0.320 INCHES NOMINAL IN, flange_width: 2.780 INCHES NOMINAL IN, recess_depth: 0.295 INCHES NOMINAL IN, flange_length: 3.120 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-255-0560, 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
903158C1
NSN: 4730-00-255-0560
FSC: 4730
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL
thickness0.562 INCHES NOMINAL IN
neck_height0.320 INCHES NOMINAL IN
flange_width2.780 INCHES NOMINAL IN
recess_depth0.295 INCHES NOMINAL IN
flange_length3.120 INCHES NOMINAL IN
recess_diameter2.031 INCHES NOMINAL IN
special_featuresSUPPORTS CLARK MODEL 290M;TRACTOR,WHEELED,IND.,DIESEL DRIVEN;MED DBP,NSN 2420000889384,W/ROPS NSN 2420010590090,SPLIT FLANGE TYPE;WEAPON SYSTEM ESSENTIAL W
style_designatorRECTANGULAR, WITH BOLT HOLES
surface_treatmentZINC
bolt_hole_diameter0.469 INCHES NOMINAL IN
bolt_hole_quantity4
NSN4730-00-255-0560
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 903158C1 · 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
CRITICALITY CODE JUSTIFICATION: FEAT
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH: 0.808 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
BOLT HOLE DIAMETER: 0.469 INCHES NOMINAL IN
FLANGE LENGTH: 3.120 INCHES NOMINAL IN
FLANGE SECTION STYLE: RECESSED FACE, RAISED NECK
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 1.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONFEAT
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.808 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
BOLT HOLE DIAMETER0.469 INCHES NOMINAL IN
FLANGE LENGTH3.120 INCHES NOMINAL IN
FLANGE SECTION STYLERECESSED FACE, RAISED NECK
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH1.120 INCHES NOMINAL IN
SPECIAL FEATURESSUPPORTS CLARK MODEL 290M;TRACTOR,WHEELED,IND.,DIESEL DRIVEN;MED DBP,NSN 2420000889384,W/ROPS NSN 2420010590090,SPLIT FLANGE TYPE;WEAPON SYSTEM ESSENTIAL W
FLANGE WIDTH2.780 INCHES NOMINAL IN
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
663095Interchangeable
interchangeable cross-reference
interchangeable
94-4644-24Interchangeable
interchangeable cross-reference
interchangeable
3H4330Interchangeable
interchangeable cross-reference
interchangeable
51H-32Interchangeable
interchangeable cross-reference
interchangeable
4730001165229Interchangeable
interchangeable cross-reference
interchangeable
M52525/16-32Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 903158C1?
903158C1 is a FLANGE,PIPE,SWIVEL RETAINING.
What parts can replace 903158C1?
There are 36 known substitutes for 903158C1: 663095, 94-4644-24, 3H4330 and 33 more. Substitute compatibility should be verified for your specific system.
Is 903158C1 still available?
903158C1 is currently cancelled.
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