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Technical Data Sheet
PartsTable / COMPONENT / 631-32D
631-32D ✓ 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 ELBOW,SWIVEL FLANGE TO HOSE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2014 FLANGE, flow_angle: 90.0 DEGREES, leg_length: 4.210 INCHES NOMINAL FIRST END IN, flange_shape: ROUND FIRST END, connection_type: FLANGE FIRST END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-319-7577, 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
631-32D
NSN: 4730-01-319-7577
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 FLANGE
flow_angle90.0 DEGREES
leg_length4.210 INCHES NOMINAL FIRST END IN
flange_shapeROUND FIRST END
connection_typeFLANGE FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
nominal_thickness0.359 INCHES FIRST END IN
flange_face_designPLAIN SWIVEL FIRST END
nominal_outside_diameter3.953 INCHES FIRST END IN
specification/standard_data81349--83798/9-32 GOVERNMENT SPECIFICATION
material_document_and_classificationQQ-A-367 FED SPEC SINGLE MATERIAL RESPONSE FLANGE
nominal_inside_diameter_hose_accommodated1.781 INCHES SECOND END IN
NSN4730-01-319-7577
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 631-32D · 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 TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
LEG LENGTH: 2.062 INCHES NOMINAL SECOND END IN
•
NOMINAL OUTSIDE DIAMETER: 3.953 INCHES FIRST END IN
•
SPECIFICATION/STANDARD DATA: 81349--83798/9-32 GOVERNMENT SPECIFICATION
•
FLANGE FACE DESIGN: PLAIN SWIVEL FIRST END
•
MATERIAL: ALUMINUM ALLOY 2014 FLANGE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 2ND MATERIAL RESPONSE OVERALL
LEG LENGTH2.062 INCHES NOMINAL SECOND END IN
NOMINAL OUTSIDE DIAMETER3.953 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA81349--83798/9-32 GOVERNMENT SPECIFICATION
FLANGE FACE DESIGNPLAIN SWIVEL FIRST END
LEG LENGTH4.210 INCHES NOMINAL FIRST END IN
MATERIALALUMINUM ALLOY 2014 FLANGE
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED2.094 INCHES SECOND END IN
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
M83798/9-20Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-83798Interchangeable
interchangeable cross-reference
interchangeable
8890-20DInterchangeable
interchangeable cross-reference
interchangeable
02320-0105Interchangeable
interchangeable cross-reference
interchangeable
12275441-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-N-26978Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 631-32D?
631-32D is a ELBOW,SWIVEL FLANGE TO HOSE.
What parts can replace 631-32D?
There are 18 known substitutes for 631-32D: M83798/9-20, MIL-F-83798, 8890-20D and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 631-32D?
631-32D is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-319-7577. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026