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206452 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

206452: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL COMP 4340, overall_height: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, style_designator: PARALLEL, end_hole_diameter: 1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN, body_inside_diameter: 1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN, inside_chamfer_depth: 0.150 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-321-2747, 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
206452
NSN: 5340-01-321-2747
NIINs: 013212747, 013410885
FSC: 5340 — Hardware, Commercial
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialSTEEL COMP 4340
overall_height0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
style_designatorPARALLEL
end_hole_diameter1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN
body_inside_diameter1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
inside_chamfer_depth0.150 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
body_outside_diameter1.980 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN
outside_chamfer_depth0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationALTIMETER,PRESSURE NSN6610-01-319-5039
inside_chamfer_angle_in_deg45.0
outside_chamfer_angle_in_deg45.0
NSN5340-01-321-2747
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 206452 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
•
BODY OUTSIDE DIAMETER: 1.980 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5000, COMP 4340 MIL SPEC SINGLE MATERIAL RESPONSE
•
INSIDE CHAMFER DEPTH: 0.150 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
•
OUTSIDE CHAMFER ANGLE IN DEG: 45.0
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.980 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN
STYLE DESIGNATORPARALLEL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000, COMP 4340 MIL SPEC SINGLE MATERIAL RESPONSE
INSIDE CHAMFER DEPTH0.150 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
OUTSIDE CHAMFER ANGLE IN DEG45.0
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALSTEEL COMP 4340
OUTSIDE CHAMFER DEPTH0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 206452?
206452 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 206452?
206452 is cataloged in the U.S. Government catalog under NSN 5340-01-321-2747. This indicates validated use in U.S. government and defense supply chains.
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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.