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ST57D70 — ELBOW,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ST57D70: ELBOW,PIPE.

The ELBOW,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OR STEEL CORROSION RESISTING OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.422 INCHES MINIMUM AND 1.470 INCHES MAXIMUM FIRST END IN, seat_angle: 30.0 DEGREES ALL ENDS, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: INVERTED FLARE (TUBE) ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-449-0626, 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
ST57D70
NSN: 4730-00-449-0626
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OR STEEL CORROSION RESISTING OVERALL
flow_angle90.0 DEGREES
leg_length1.422 INCHES MINIMUM AND 1.470 INCHES MAXIMUM FIRST END IN
seat_angle30.0 DEGREES ALL ENDS
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_styleINVERTED FLARE (TUBE) ALL ENDS
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.500 INCHES ALL ENDS IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorNPTF ALL ENDS
nondefinitive_spec/std_data43 FIGURE
specification/standard_data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-449-0626
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST57D70 · 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
•
FLOW ANGLE: 90.0 DEGREES
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
CONNECTION STYLE: INVERTED FLARE (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
LEG LENGTH: 1.375 INCHES MINIMUM AND 1.470 INCHES MAXIMUM SECOND END IN
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
CONNECTION STYLEINVERTED FLARE (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
LEG LENGTH1.375 INCHES MINIMUM AND 1.470 INCHES MAXIMUM SECOND END IN
LEG LENGTH1.422 INCHES MINIMUM AND 1.470 INCHES MAXIMUM FIRST END IN
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
SEAT ANGLE30.0 DEGREES ALL ENDS
SPECIFICATION/STANDARD DATA81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 7
8-8 140237SReference document
Same NSN cross-reference
Reference document — Design control — primary reference
ST57D70-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
S39093-009Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
6780808-2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1-2CRSSReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST57D70?
ST57D70 is a ELBOW,PIPE.
What parts can replace ST57D70?
There are 7 known substitutes for ST57D70: 8-8 140237S, ST57D70-4, S39093-009 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST57D70?
ST57D70 is cataloged in the U.S. Government catalog under NSN 4730-00-449-0626. This indicates validated use in U.S. government and defense supply chains.
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