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A51B48503-14 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A51B48503-14: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include material: STEEL UNS J92200 OVERALL, hinge_pin: NOT INCLUDED, knuckle_length: 0.244 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN, overall_length: 2.105 INCHES NOMINAL IN, performance_type: NOT RATED, end_knuckle_length: 0.160 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-213-4958, 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
A51B48503-14
NSN: 5340-01-213-4958
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL UNS J92200 OVERALL
hinge_pinNOT INCLUDED
knuckle_length0.244 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
overall_length2.105 INCHES NOMINAL IN
knuckle_quantity4
performance_typeNOT RATED
end_knuckle_length0.160 INCHES NOMINAL IN
material_thickness0.220 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
mounting_hole_diameter0.186 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
mounting_hole_quantity2
knuckle_inside_diameter0.133 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
NSN5340-01-213-4958
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A51B48503-14 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
•
MOUNTING HOLE QUANTITY: 2
•
REVERSIBLE FEATURE: NOT INCLUDED
•
KNUCKLE INSIDE DIAMETER: 0.133 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5344 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.186 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
•
PIN CENTER TO BODY EDGE DISTANCE: 1.000 INCHES NOMINAL IN
•
HINGE PIN: NOT INCLUDED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
REVERSIBLE FEATURENOT INCLUDED
KNUCKLE INSIDE DIAMETER0.133 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5344 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.186 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
OVERALL LENGTH2.105 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE1.000 INCHES NOMINAL IN
HINGE PINNOT INCLUDED
MATERIAL THICKNESS0.220 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH0.750 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
PL A51B48503-14Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51B48503-14?
A51B48503-14 is a LEAF,BUTT HINGE.
What parts can replace A51B48503-14?
There is 1 known substitute for A51B48503-14: PL A51B48503-14. Substitute compatibility should be verified for your specific system.
What is the NSN for A51B48503-14?
A51B48503-14 is cataloged in the U.S. Government catalog under NSN 5340-01-213-4958. 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.