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MS51953-107B — NIPPLE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS51953-107B: NIPPLE,PIPE.

The NIPPLE,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: LONG, surface_treatment: OXIDE OVERALL, nominal_thread_size: 0.750 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-188-1899, 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
MS51953-107B
NSN: 4730-00-188-1899
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorLONG
surface_treatmentOXIDE OVERALL
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length5.000 INCHES IN
thread_series_designatorNPT ALL ENDS
specification/standard_data81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
material_document_and_classificationASTM A120 OR A106 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationASTM A120 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-188-1899
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-107B · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A120 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 5.000 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: LONG
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A120 OR A106 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A120 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH5.000 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
STYLE DESIGNATORLONG
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A120 OR A106 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
SURFACE TREATMENTOXIDE OVERALL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
WW-N-351Reference document
Same NSN cross-reference
Reference document — Secondary reference
ASTM-A733Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
BM11352-93Reference document
Same NSN cross-reference
Reference document — Secondary reference
190725Reference document
Same NSN cross-reference
Reference document — Secondary reference
JD1219Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS51953-107B?
MS51953-107B is a NIPPLE,PIPE.
What parts can replace MS51953-107B?
There are 5 known substitutes for MS51953-107B: WW-N-351, ASTM-A733, BM11352-93 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51953-107B?
MS51953-107B is cataloged in the U.S. Government catalog under NSN 4730-00-188-1899. This indicates validated use in U.S. government and defense supply chains.
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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.