NSN 5310-01-135-2422 · NIIN 011352422 · Part number KFS2-M2.5
Penn Engineering & Manufacturing Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 46384
Government record, cited
NSN 5310-01-135-2422 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-135-2422. Manufacturer of record part number: KFS2-M2.5.
Also searched as5310-01-135-2422 ·
5310011352422 ·
NIIN 011352422 ·
01-135-2422 ·
FSC 5310 Nuts and Washers · CAGE 46384 · KFS2-M2.5 · 999/4/38424/004 · 22772-1
Nut Diameter: 5.43 MILLIMETERS MINIMUM AND 5.69 MILLIMETERS MAXIMUM MM
Pilot Diameter: 4.47 MILLIMETERS MINIMUM AND 4.63 MILLIMETERS MAXIMUM MM
Identification
NSN: 5310-01-135-2422
NIIN: 011352422
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: KFS2-M2.5
Manufacturer: Penn Engineering & Manufacturing Corp
General Description
The Nut,plain,spline, cataloged under National Stock Number 5310-01-135-2422, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-135-2422
Primary Part Number
KFS2-M2.5
Item Name
Nut,plain,spline
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Penn Engineering & Manufacturing Corp
Status
ACTIVE
Thread Tolerance Class
6H INTERNAL
Thread Series
ISO M
Thread Pitch in Millimeters
0.50
Thread Direction
RIGHT-HAND
Nominal Thread Size
2.5 MILLIMETERS MM
Nut Diameter
5.43 MILLIMETERS MINIMUM AND 5.69 MILLIMETERS MAXIMUM MM
Pilot Diameter
4.47 MILLIMETERS MINIMUM AND 4.63 MILLIMETERS MAXIMUM MM
Pilot Length
1.50 MILLIMETERS MAXIMUM MM
Nut Height
1.43 MILLIMETERS MINIMUM AND 1.63 MILLIMETERS MAXIMUM MM
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-135-2422?
NSN 5310-01-135-2422 is a Nut,plain,spline, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-135-2422?
NSN 5310-01-135-2422 has 2 manufacturer part numbers on file: KFS2-M2.5 (Penn Engineering & Manufacturing Corp), 22772-1 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).
What are the specifications of KFS2-M2.5?
Key specifications for KFS2-M2.5: Thread Tolerance Class: 6H INTERNAL; Thread Series: ISO M; Thread Pitch in Millimeters: 0.50; Thread Direction: RIGHT-HAND. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-135-2422 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.