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51870-1 — ELBOW,THRU BULKHEAD

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

51870-1: ELBOW,THRU BULKHEAD.

The ELBOW,THRU BULKHEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, construction: ONE-PIECE, overall_height: 0.375 INCHES NOMINAL IN, seal_seat_depth: 0.430 INCHES NOMINAL IN, flange_thickness: 0.077 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN, style_designator: FLANGED. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-737-5840, 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
51870-1
NSN: 5330-00-737-5840
NIINs: 007375840, 013315427
FSC: 5330 — Packing and Gasket Materials
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
constructionONE-PIECE
overall_height0.375 INCHES NOMINAL IN
seal_seat_depth0.430 INCHES NOMINAL IN
flange_thickness0.077 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
style_designatorFLANGED
aperture_diameter1.440 INCHES NOMINAL IN
bolt_hole_diameter0.279 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
bolt_hole_quantity6
seal_seat_diameter1.624 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
bolt_circle_diameter2.750 INCHES NOMINAL IN
fsc_application_dataVEHICULAR MISCELLANEOUS ENGINE ACCESSORIESNONAIRCRAFT
NSN5330-00-737-5840
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51870-1 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FSC APPLICATION DATA: VEHICULAR MISCELLANEOUS ENGINE ACCESSORIESNONAIRCRAFT
•
FLANGE THICKNESS: 0.077 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.810 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLANGED
•
BOLT HOLE DIAMETER: 0.279 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
SEAL SEAT DIAMETER: 1.624 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 1.440 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.375 INCHES NOMINAL IN
FSC APPLICATION DATAVEHICULAR MISCELLANEOUS ENGINE ACCESSORIESNONAIRCRAFT
FLANGE THICKNESS0.077 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.810 INCHES NOMINAL IN
STYLE DESIGNATORFLANGED
BOLT HOLE DIAMETER0.279 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
SEAL SEAT DIAMETER1.624 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
APERTURE DIAMETER1.440 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER2.750 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
7375840Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 51870-1?
51870-1 is a ELBOW,THRU BULKHEAD.
What parts can replace 51870-1?
There is 1 known substitute for 51870-1: 7375840. Substitute compatibility should be verified for your specific system.
What is the NSN for 51870-1?
51870-1 is cataloged in the U.S. Government catalog under NSN 5330-00-737-5840. This indicates validated use in U.S. government and defense supply chains.
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