PartsTable
Technical Data Sheet
Download PDF

751682-1-1 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

751682-1-1: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 410, design_type: SOLID, bore_diameter: 1.2800 INCHES NOMINAL IN, overall_height: 0.2980 INCHES MINIMUM AND 0.3020 INCHES MAXIMUM IN, counterbore_length: 0.2120 INCHES NOMINAL IN, first_step_diameter: 1.8470 INCHES MINIMUM AND 1.8488 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-211-6290, 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
751682-1-1
NSN: 5340-01-211-6290
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 410
design_typeSOLID
bore_diameter1.2800 INCHES NOMINAL IN
overall_height0.2980 INCHES MINIMUM AND 0.3020 INCHES MAXIMUM IN
counterbore_length0.2120 INCHES NOMINAL IN
first_step_diameter1.8470 INCHES MINIMUM AND 1.8488 INCHES MAXIMUM IN
counterbore_diameter1.6860 INCHES MINIMUM AND 1.6910 INCHES MAXIMUM IN
material_hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
material_document_and_classificationAMS 5612 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-211-6290
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 751682-1-1 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
KEY FEATURES
•
FIRST STEP DIAMETER: 1.8470 INCHES MINIMUM AND 1.8488 INCHES MAXIMUM IN
•
MATERIAL HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
DESIGN TYPE: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5612 ASSN STD SINGLE MATERIAL RESPONSE
•
COUNTERBORE LENGTH: 0.2120 INCHES NOMINAL IN
•
COUNTERBORE DIAMETER: 1.6860 INCHES MINIMUM AND 1.6910 INCHES MAXIMUM IN
•
BORE DIAMETER: 1.2800 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.2980 INCHES MINIMUM AND 0.3020 INCHES MAXIMUM IN
FIRST STEP DIAMETER1.8470 INCHES MINIMUM AND 1.8488 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5612 ASSN STD SINGLE MATERIAL RESPONSE
COUNTERBORE LENGTH0.2120 INCHES NOMINAL IN
COUNTERBORE DIAMETER1.6860 INCHES MINIMUM AND 1.6910 INCHES MAXIMUM IN
BORE DIAMETER1.2800 INCHES NOMINAL IN
MATERIALSTEEL COMP 410
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 751682-1-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 751682-1-1?
751682-1-1 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 751682-1-1?
751682-1-1 is cataloged in the U.S. Government catalog under NSN 5340-01-211-6290. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 751682-1-1

✓ 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.