NSN 2520-01-073-5566 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-073-5566. Manufacturer of record part number: 74913980.
Also searched as2520-01-073-5566 ·
2520010735566 ·
NIIN 010735566 ·
01-073-5566 ·
FSC 2520 Vehicular Power Transmission Components · CAGE 0AHU0 · 74913980 · 4913980-1
General Characteristics Item Description: CAST IRON BODY;STEEL INTERNAL PARTS;GEAR PUMPING ELEMENTS;4.562 IN. O/A LG5.875 IN. LARGEST OD;FOUR PLAIN MTG HOLES,0.344 IN. DIA+SPACED 90 DEG APART ON A 4.750 IN. HOLE CIRCLE;EXTERNAL INVOLUTE DRIVE SLPLINES;29 TEETH;20/40 DIAMETRAL PITCH;1.450 IN. PITCH DIA;30 DEG PRESSURE ANGLE IN
2 manufacturer part numbers on file
Manufacturer of record: Kalmar AC Inc
Identification
NSN: 2520-01-073-5566
NIIN: 010735566
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 74913980
Manufacturer: Kalmar AC Inc
General Description
The Pump Assembly,transmission, cataloged under National Stock Number 2520-01-073-5566, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2520-01-073-5566
Primary Part Number
74913980
Item Name
Pump Assembly,transmission
FSC / FSG
2520 / 25 — Vehicular Power Transmission Components
Manufacturer
Kalmar AC Inc
Status
ACTIVE
General Characteristics Item Description
CAST IRON BODY;STEEL INTERNAL PARTS;GEAR PUMPING ELEMENTS;4.562 IN. O/A LG5.875 IN. LARGEST OD;FOUR PLAIN MTG HOLES,0.344 IN. DIA+SPACED 90 DEG APART ON A 4.750 IN. HOLE CIRCLE;EXTERNAL INVOLUTE DRIVE SLPLINES;29 TEETH;20/40 DIAMETRAL PITCH;1.450 IN. PITCH DIA;30 DEG PRESSURE ANGLE IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 2520 — Vehicular Power Transmission Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2520-00-000-3976
2520-00-000-3976 · Item name not on file
2520-00-000-8852
2520-00-000-8852 · Item name not on file
2520-00-000-9292
2520-00-000-9292 · Item name not on file
2520-00-001-0011
2520-00-001-0011 · Item name not on file
2520-00-001-3397
2520-00-001-3397 · Item name not on file
2520-00-001-3425
2520-00-001-3425 · Item name not on file
2520-00-001-3440
ROLLER,CENTER
2520-00-001-3441
2520-00-001-3441 · Item name not on file
Frequently Asked Questions
What is NSN 2520-01-073-5566?
NSN 2520-01-073-5566 is a Pump Assembly,transmission, manufactured by Kalmar AC Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
What part numbers are listed for NSN 2520-01-073-5566?
NSN 2520-01-073-5566 has 2 manufacturer part numbers on file: 74913980 (Kalmar AC Inc), 4913980-1 (Kalmar AC Inc).
What are the specifications of 74913980?
Key specifications for 74913980: General Characteristics Item Description: CAST IRON BODY;STEEL INTERNAL PARTS;GEAR PUMPING ELEMENTS;4.562 IN. O/A LG5.875 IN. LARGEST OD;FOUR PLAIN MTG HOLES,0.344 IN. DIA+SPACED 90 DEG APART ON A 4.750 IN. HOLE CIRCLE;EXTERNAL INVOLUTE DRIVE SLPLINES;29 TEETH;20/40 DIAMETRAL PITCH;1.450 IN. PITCH DIA;30 DEG PRESSURE ANGLE IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2520-01-073-5566 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.