PartsTable
Technical Data Sheet
51H-32 ✓ 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: 0.750 INCHES NOMINAL IN, flange_width: 3.720 INCHES NOMINAL IN, recess_depth: 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, flange_length: 4.000 INCHES NOMINAL IN, recess_diameter: 2.844 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-116-5229, 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
51H-32
NSN: 4730-00-116-5229
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL
thickness0.750 INCHES NOMINAL IN
flange_width3.720 INCHES NOMINAL IN
recess_depth0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
flange_length4.000 INCHES NOMINAL IN
recess_diameter2.844 INCHES NOMINAL IN
special_featuresSPLIT FLANGE TYPE
style_designatorRECTANGULAR, WITH BOLT HOLES
surface_treatmentZINC
bolt_hole_diameter0.531 INCHES NOMINAL IN
bolt_hole_quantity4
flange_section_stylePLAIN RECESSED FACE
NSN4730-00-116-5229
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 51H-32 · 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
STYLE DESIGNATOR: RECTANGULAR, WITH BOLT HOLES
BOLT HOLE DIAMETER: 0.531 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE @2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
MATERIAL: STEEL
SURFACE TREATMENT: ZINC
THICKNESS: 0.750 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITION: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSPLIT FLANGE TYPE
STYLE DESIGNATORRECTANGULAR, WITH BOLT HOLES
BOLT HOLE DIAMETER0.531 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE @2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
MATERIALSTEEL
SURFACE TREATMENTZINC
THICKNESS0.750 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONGROUND
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH1.050 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH3.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
663095Interchangeable
interchangeable cross-reference
interchangeable
94-4644-24Interchangeable
interchangeable cross-reference
interchangeable
3H4330Interchangeable
interchangeable cross-reference
interchangeable
903158C1Interchangeable
interchangeable cross-reference
interchangeable
A2399-20ZKInterchangeable
interchangeable cross-reference
interchangeable
LT1-1266Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51H-32?
51H-32 is a FLANGE,PIPE,SWIVEL RETAINING.
What parts can replace 51H-32?
There are 19 known substitutes for 51H-32: 663095, 94-4644-24, 3H4330 and 16 more. Substitute compatibility should be verified for your specific system.
Is 51H-32 still available?
51H-32 is currently cancelled.
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