PartsTable
Technical Data Sheet
Download PDF

3311-102 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3311-102: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 2024, design_type: SOLID, end_diameter: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN, bore_diameter: 0.2520 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN, overall_height: 0.2650 INCHES NOMINAL IN, special_features: END IS CHAMFERED 0.0620 IN. BY 30.0 DEGREES IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-201-9841, 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
3311-102
NSN: 5340-01-201-9841
FSC: 5340 — Hardware, Commercial
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
design_typeSOLID
end_diameter0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
bore_diameter0.2520 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
overall_height0.2650 INCHES NOMINAL IN
special_featuresEND IS CHAMFERED 0.0620 IN. BY 30.0 DEGREES IN
style_designatorSEAT
first_step_diameter0.5620 INCHES NOMINAL IN
distance_from_end_to_first_step0.1250 INCHES NOMINAL IN
material_document_and_classificationAMS 4120 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-201-9841
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3311-102 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: 0.5620 INCHES NOMINAL IN
•
END DIAMETER: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.1250 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.2650 INCHES NOMINAL IN
FIRST STEP DIAMETER0.5620 INCHES NOMINAL IN
END DIAMETER0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.1250 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4120 ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURESEND IS CHAMFERED 0.0620 IN. BY 30.0 DEGREES IN
BORE DIAMETER0.2520 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 2024
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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
Ready to buy 3311-102?
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 3311-102?
3311-102 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 3311-102?
3311-102 is cataloged in the U.S. Government catalog under NSN 5340-01-201-9841. 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 — 3311-102