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A56-170 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A56-170: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include document_type: ENGINEERING DRAWING, end_item_name: RADAR SETS, document_source: 32947, end_item_source: 32947, fsc_application_data: RADAR EQUIPMENT EXCEPT AIRBORNE, document_identification: 56170. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-180-4166, 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
A56-170
NSN: 5330-00-180-4166
NIINs: 001804166, 008138663
FSC: 5330 — Packing and Gasket Materials
CAGE: 25472 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
document_typeENGINEERING DRAWING
end_item_nameRADAR SETS
document_source32947
end_item_source32947
component_quantity2
fsc_application_dataRADAR EQUIPMENT EXCEPT AIRBORNE
document_identification56170
end_item_identificationAN/UPX-17
component_document_originINDUSTRIAL
component_document_page_number1
NSN5330-00-180-4166
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A56-170 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: WHEEL,NOSE
•
CROSS-SECTIONAL HEIGHT: 0.280 INCHES NOMINAL IN
•
BODY RECESS DIAMETER: 2.875 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
•
PERIPHERAL DIAMETER: 3.546 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
CENTER HOLE DIAMETER: 2.625 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAWHEEL,NOSE
CROSS-SECTIONAL HEIGHT0.280 INCHES NOMINAL IN
BODY RECESS DIAMETER2.875 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
PERIPHERAL DIAMETER3.546 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
CENTER HOLE DIAMETER2.625 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A56-170?
A56-170 is a RETAINER,PACKING.
What is the NSN for A56-170?
A56-170 is cataloged in the U.S. Government catalog under NSN 5330-00-180-4166. 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.