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MS51503B8-8S — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS51503B8-8S: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-051-5210, 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
MS51503B8-8S
NSN: 4730-00-051-5210
NIINs: 000515210, 015880616
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
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND SPECIFICATIONS
NSN4730-00-051-5210
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51503B8-8S · 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
•
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
•
CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.600 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 0.750 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL OVERALL LENGTH1.600 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA96906-MS51503 GOVERNMENT STANDARD
MAXIMUM OPERATING TEMP400.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 7
8-8STFSSReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
PP2009-10Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8-8GBTXSSReference document
Same NSN cross-reference
Reference document — Secondary reference
C5255X8X8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8-8GTXSSReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
C35255X8X8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 MS51503B8-8S?
MS51503B8-8S is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace MS51503B8-8S?
There are 7 known substitutes for MS51503B8-8S: 8-8STFSS, PP2009-10, 8-8GBTXSS and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51503B8-8S?
MS51503B8-8S is cataloged in the U.S. Government catalog under NSN 4730-00-051-5210. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.