PartsTable
Technical Data Sheet
Download PDF

P309 — CAPACITOR,FIXED,PAPER DIELECTRIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

P309: CAPACITOR,FIXED,PAPER DIELECTRIC.

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include material: COTTON FILTERING MEDIUM, body_width: 2.120 INCHES MAXIMUM IN, ring_style: EXTERNAL, body_height: 2.000 INCHES NOMINAL IN, design_type: NONREUSABLE, usage_design: EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-282-6970, 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
P309
NSN: 5325-00-282-6970
NIINs: 002826970, 004004570, 005094435, 005413499, 009628523, 012390597, 017300104
FSC: 5325 — Fastening Devices
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialCOTTON FILTERING MEDIUM
body_width2.120 INCHES MAXIMUM IN
ring_styleEXTERNAL
body_height2.000 INCHES NOMINAL IN
design_typeNONREUSABLE
usage_designEXTERNAL
body_diameter4.312 INCHES NOMINAL IN
flow_directionOUTSIDE IN
inclosure_typeOPEN
overall_length3.190 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN
inside_diameter1.257 INCHES MINIMUM AND 1.282 INCHES MAXIMUM IN
major_thickness0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
NSN5325-00-282-6970
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: P309 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL HARDNESS RATING: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 1.257 INCHES MINIMUM AND 1.282 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: EXTERNAL
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
INSIDE DIAMETER1.257 INCHES MINIMUM AND 1.282 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEEXTERNAL
SURFACE TREATMENTPHOSPHATE
MATERIALSTEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090
SUBSTITUTES & CROSS-REFERENCES 6
T9160475PC189Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS16624-3137Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
42R2050-160Reference document
Same NSN cross-reference
Reference document — Secondary reference
480775PC189Reference document
Same NSN cross-reference
Reference document — Secondary reference
5325PL0900480Reference document
Same NSN cross-reference
Reference document — Informative reference only
5100-137PPReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy P309?
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 P309?
P309 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace P309?
There are 6 known substitutes for P309: T9160475PC189, MS16624-3137, 42R2050-160 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P309?
P309 is cataloged in the U.S. Government catalog under NSN 5325-00-282-6970. 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 — P309

✓ 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.