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Technical Data Sheet
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51429 ✓ 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 CAP,DUST,PROPELLER SHAFT is a the manufacturer industrial component. Key specifications include design_type: LIMITED, media_for_which_designed: FUEL/OIL, HYDROCARBON. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-196-1966, 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
51429
NSN: 4730-00-196-1966
FSC: 4730
CAGE: 55708 — ROTARY VACUUM PUMPS INC (USA)
SPECIFICATIONS
design_typeLIMITED
media_for_which_designedFUEL/OIL, HYDROCARBON
NSN4730-00-196-1966
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 51429 · 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
•
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL OVERALL LENGTH: 3.500 INCHES IN
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
SPECIFICATION/STANDARD DATA: 81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
•
MEDIA FOR WHICH DESIGNED: FLUID SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OVERALL LENGTH3.500 INCHES IN
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
SPECIFICATION/STANDARD DATA81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
END ITEM IDENTIFICATIONMULTI APPLICATION
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B43 ASSN STD 1ST MATERIAL RESPONSE OR ASTM B42 ASSN STD 2ND MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
MC312Interchangeable
interchangeable cross-reference
interchangeable
BB7029Interchangeable
interchangeable cross-reference
interchangeable
16DS55Interchangeable
interchangeable cross-reference
interchangeable
456612C1Interchangeable
interchangeable cross-reference
interchangeable
51429Interchangeable
interchangeable cross-reference
interchangeable
KK99424Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51429?
51429 is a CAP,DUST,PROPELLER SHAFT.
What parts can replace 51429?
There are 24 known substitutes for 51429: MC312, BB7029, 16DS55 and 21 more. Substitute compatibility should be verified for your specific system.
Is 51429 still available?
51429 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026