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887837-1 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

887837-1: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL COMP 4130 OVERALL, head_style: HEXAGON, head_height: 0.500 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.250 INCHES NOMINAL IN, shoulder_shape: ROUND ALL SHOULDERS. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-407-3270, 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
887837-1
NSN: 5340-00-407-3270
NIINs: 004073270, 011492094
FSC: 5340 — Hardware, Commercial
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
head_styleHEXAGON
head_height0.500 INCHES NOMINAL IN
thread_class2A A
thread_length0.250 INCHES NOMINAL IN
shoulder_shapeROUND ALL SHOULDERS
fastener_length4.750 INCHES NOMINAL IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length0.980 INCHES NOMINAL ALL SHOULDERS IN
thread_directionRIGHT-HAND
shoulder_diameter0.250 INCHES NOMINAL ALL SHOULDERS IN
surface_treatmentCADMIUM OVERALL
NSN5340-00-407-3270
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 887837-1 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 887837-1?
887837-1 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 887837-1?
887837-1 is cataloged in the U.S. Government catalog under NSN 5340-00-407-3270. 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.