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122-5486623 PC56 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

122-5486623 PC56: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 3.500 INCHES NOMINAL IN, diameter: 0.497 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN, left_slot_width: 0.120 INCHES NOMINAL IN, right_slot_depth: 0.380 INCHES NOMINAL IN, right_slot_width: 0.120 INCHES NOMINAL IN, style_designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-281-7269, 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
122-5486623 PC56
NSN: 5340-01-281-7269
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length3.500 INCHES NOMINAL IN
diameter0.497 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN
left_slot_width0.120 INCHES NOMINAL IN
right_slot_depth0.380 INCHES NOMINAL IN
right_slot_width0.120 INCHES NOMINAL IN
style_designatorLEFT INTERNAL AND RIGHT INTERNAL THREADS
cross-sectional_shapeROUND
left_end_chamfer_angle45.0 DEGREES NOMINAL
left_end_chamfer_depth0.060 INCHES NOMINAL IN
right_end_chamfer_angle45.0 DEGREES NOMINAL
right_end_chamfer_depth0.060 INCHES NOMINAL IN
distance_from_end_to_hole_center1.000 INCHES NOMINAL IN
NSN5340-01-281-7269
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 122-5486623 PC56 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
•
LEFT END CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
LENGTH: 3.500 INCHES NOMINAL IN
•
LEFT SLOT WIDTH: 0.120 INCHES NOMINAL IN
•
RIGHT END CHAMFER DEPTH: 0.060 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT INTERNAL THREADS
•
DIAMETER: 0.497 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN
•
RIGHT END CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
RIGHT SLOT WIDTH: 0.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LEFT END CHAMFER ANGLE45.0 DEGREES NOMINAL
LENGTH3.500 INCHES NOMINAL IN
LEFT SLOT WIDTH0.120 INCHES NOMINAL IN
RIGHT END CHAMFER DEPTH0.060 INCHES NOMINAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT INTERNAL THREADS
DIAMETER0.497 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN
RIGHT END CHAMFER ANGLE45.0 DEGREES NOMINAL
RIGHT SLOT WIDTH0.120 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEROUND
DISTANCE FROM END TO HOLE CENTER1.000 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
37-40-7810Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 122-5486623 PC56?
122-5486623 PC56 is a STANDOFF,THREADED,SPACING.
What parts can replace 122-5486623 PC56?
There is 1 known substitute for 122-5486623 PC56: 37-40-7810. Substitute compatibility should be verified for your specific system.
What is the NSN for 122-5486623 PC56?
122-5486623 PC56 is cataloged in the U.S. Government catalog under NSN 5340-01-281-7269. 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.