PartsTable
Technical Data Sheet
Download PDF

MS51843-8SS-EPR — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS51843-8SS-EPR: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, special_features: PACKING MATERIAL EPR CLASS FURNISHED WITH ITEM. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-281-0986, 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
MS51843-8SS-EPR
NSN: 4730-01-281-0986
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 CORROSION RESISTING OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
special_featuresPACKING MATERIAL EPR CLASS FURNISHED WITH ITEM
surface_treatmentCADMIUM OVERALL
nominal_thread_size1.062 INCHES ALL ENDS IN
nominal_overall_length1.790 INCHES IN
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
NSN4730-01-281-0986
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51843-8SS-EPR · 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 AND 1 PREFORMED PACKING
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.790 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 1.062 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT AND 1 PREFORMED PACKING
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.790 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES FIRST END IN
NOMINAL THREAD SIZE1.062 INCHES ALL ENDS IN
SEAT ANGLE12.0 DEGREES FIRST END
SPECIFICATION/STANDARD DATA96906-MS51843 GOVERNMENT STANDARD
SUBSTITUTES & CROSS-REFERENCES 6
8F5BU-SS-EPRReference document
Same NSN cross-reference
Reference document — Secondary reference
E104459 FIND NO 51Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
E105994 FIND 61Reference document
Same NSN cross-reference
Reference document — Secondary reference
D320448 FIND NO 74Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8F5BU-S-EPRReference document
Same NSN cross-reference
Reference document — Secondary reference
E103972 FIND NO 51Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy MS51843-8SS-EPR?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS51843-8SS-EPR?
MS51843-8SS-EPR is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS51843-8SS-EPR?
There are 6 known substitutes for MS51843-8SS-EPR: 8F5BU-SS-EPR, E104459 FIND NO 51, E105994 FIND 61 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51843-8SS-EPR?
MS51843-8SS-EPR is cataloged in the U.S. Government catalog under NSN 4730-01-281-0986. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS51843-8SS-EPR

✓ 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.