PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4278Disk Drive Unit

Pep Modular Computers Inc · NSN 7025-01-416-3982 · FSC 7025 · No Item Name Available
Verified by PartsTable
NSN 7025-01-416-3982 — this item is cataloged by the U.S. Government under National Stock Number 7025-01-416-3982. Primary manufacturer part number: 4278.
Features
  • Disk Drive Unit — FSC 7025
  • Drive Quantity: 1
  • Design Type: DISK CARTRIDGE
  • Transfer Rate in Megabytes Per Second: 4.0
  • Interface Type: ESDI AND SCSI
  • Drive Size: 3.50
  • Data Storage Capacity: 256.00 MEGABYTES
  • Unit Design: INTERNAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk Drive Unit, cataloged under National Stock Number 7025-01-416-3982, is classified within Federal Supply Class 7025 (No Item Name Available) of the General Purpose ADP Equipment group. The primary manufacturer of record is Pep Modular Computers Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN7025-01-416-3982
Primary Part Number4278
Item NameDisk Drive Unit
FSC / FSG7025 / 70 — No Item Name Available
ManufacturerPep Modular Computers Inc
StatusACTIVE
Drive Quantity1
Design TypeDISK CARTRIDGE
Transfer Rate in Megabytes Per Second4.0
Interface TypeESDI AND SCSI
Drive Size3.50
Data Storage Capacity256.00 MEGABYTES
Unit DesignINTERNAL
Drive Quantity1
Design TypeDISK CARTRIDGE
Transfer Rate in Megabytes Per Second4.0
Interface TypeESDI AND SCSI
Drive Size3.50
Data Storage Capacity256.00 MEGABYTES
Unit DesignINTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 12
3110-00-008-2413 INTERCHANGEABLE
Bearing,plate
2040-00-183-59304278 INTERCHANGEABLE
Lead,sealing
Liquid Controls, L.l.c. Div Idex Corporation
5330-00-253-1092 INTERCHANGEABLE
Gasket
5360-00-292-5068 INTERCHANGEABLE
Spring,helical,compression
3120-00-293-5041GBF79 INTERCHANGEABLE
Bearing,sleeve
Prestolite Electric Inc
2840-00-858-7829427-8 INTERCHANGEABLE
Bearing Plate,cap a
Parker Hannifin Corp Dba Pneutronics
4820-00-901-194607420-0200 INTERCHANGEABLE
Valve,safety Relief
Imi Cash Valve Inc
5330-01-171-702171049 INTERCHANGEABLE
Retainer,packing
Pneudraulics, Inc.
4330-01-200-57522029 INTERCHANGEABLE
Filter Element,fluid
Doms, Incorporated Div Doms Incorporated
6350-01-218-9435553-00049-99 INTERCHANGEABLE
Regulator,alarm
Vindicator Corp
Cross-Reference Index
Part NumberManufacturer
710-49 Pep Modular Computers Inc (USA)
03-1326201-27 Gte Government Systems Corp Strategic Systems Div (USA)
4278 PRIMARY Pep Modular Computers Inc (USA)
Related Parts
3110-00-008-2413INTERCHANGEABLE
BEARING,PLATE
2040-00-183-5930INTERCHANGEABLE
LEAD,SEALING
4278
5330-00-253-1092INTERCHANGEABLE
GASKET
5360-00-292-5068INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3120-00-293-5041INTERCHANGEABLE
BEARING,SLEEVE
GBF79
2840-00-858-7829INTERCHANGEABLE
BEARING PLATE,CAP A
427-8
4820-00-901-1946INTERCHANGEABLE
VALVE,SAFETY RELIEF
07420-0200
5330-01-171-7021INTERCHANGEABLE
RETAINER,PACKING
71049
4330-01-200-5752INTERCHANGEABLE
FILTER ELEMENT,FLUID
2029
6350-01-218-9435INTERCHANGEABLE
REGULATOR,ALARM
553-00049-99
7510-01-227-4253INTERCHANGEABLE
DESIGN KIT,PC BOARD
4720-01-395-7326INTERCHANGEABLE
HOSE,PREFORMED
1237363H1

Frequently Asked Questions

What is NSN 7025-01-416-3982?

NSN 7025-01-416-3982 is a Disk Drive Unit, manufactured by Pep Modular Computers Inc, classified under FSC 7025 (No Item Name Available). Status: active.

What are the part numbers for NSN 7025-01-416-3982?

NSN 7025-01-416-3982 has 3 cross-referenced part numbers: 710-49 (Pep Modular Computers Inc), 03-1326201-27 (Gte Government Systems Corp Strategic Systems Div), 4278 (Pep Modular Computers Inc).

What NSN replaces 7025-01-416-3982?

There are 12 known substitutes for 7025-01-416-3982: 3110-00-008-2413, 2040-00-183-5930, 5330-00-253-1092 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4278?

Key specifications for 4278: Special Features: REMOVABLE 105 OR 256 MB FORMATED CARTRIDGE MEDIA; RUGGED HARD DISK CARTRIDGE; NHA IS 6625-01-361-7788UG MB; Drive Quantity: 1; Design Type: DISK CARTRIDGE; Transfer Rate in Megabytes Per Second: 4.0. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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