PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74549Cover

Precision Scientific Petroleum Instruments Co · NSN 6630-00-394-7744 · FSC 6630 · No Item Name Available
Verified by PartsTable
NSN 6630-00-394-7744 — this item is cataloged by the U.S. Government under National Stock Number 6630-00-394-7744. Primary manufacturer part number: 74549.
Features
  • Cover — FSC 6630
  • 2 verified cross-references
  • Primary manufacturer: Precision Scientific Petroleum Instruments Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cover, cataloged under National Stock Number 6630-00-394-7744, is classified within Federal Supply Class 6630 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Precision Scientific Petroleum Instruments Co. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCover
FSC / FSG6630 — No Item Name Available (FSG 66)
ManufacturersPrecision Scientific Petroleum Instruments Co (CAGE 48619); Manostat Corp (CAGE 21519)
Technical Specifications
ParameterValue
NSN6630-00-394-7744
Primary Part Number74549
Item NameCover
FSC / FSG6630 / 66 — No Item Name Available
ManufacturerPrecision Scientific Petroleum Instruments Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-187-001974549 INTERCHANGEABLE
Seal,oil
Dressta North America Ltd
6630-00-360-0022 INTERCHANGEABLE
Cover Assembly,petroleum
1610-00-483-699974549 INTERCHANGEABLE
Packing-Piston---Ap
Hamilton Sundstrand Corporation Dba Collins Aerospace
3120-00-573-922286089 INTERCHANGEABLE
Bearing Sleeve,matched Set
Triumph Engine Control Systems Llc
8455-00-898-97308455008989730 INTERCHANGEABLE
Badge,identification,personnel
National Industries for the Blind
Cross-Reference Index
Part NumberManufacturer
74549 PRIMARY Precision Scientific Petroleum Instruments Co (USA)
G18206 Manostat Corp (USA)
Related Parts
5330-00-187-0019INTERCHANGEABLE
SEAL,OIL
74549
6630-00-360-0022INTERCHANGEABLE
COVER ASSEMBLY,PETROLEUM
1610-00-483-6999INTERCHANGEABLE
PACKING-PISTON---AP
74549
3120-00-573-9222INTERCHANGEABLE
BEARING SLEEVE,MATCHED SET
86089
8455-00-898-9730INTERCHANGEABLE
BADGE,IDENTIFICATION,PERSONNEL
8455008989730

Frequently Asked Questions

What is NSN 6630-00-394-7744?

NSN 6630-00-394-7744 is a Cover, manufactured by Precision Scientific Petroleum Instruments Co, classified under FSC 6630 (No Item Name Available). Status: active.

What are the part numbers for NSN 6630-00-394-7744?

NSN 6630-00-394-7744 has 2 cross-referenced part numbers: 74549 (Precision Scientific Petroleum Instruments Co), G18206 (Manostat Corp).

What NSN replaces 6630-00-394-7744?

There are 5 known substitutes for 6630-00-394-7744: 5330-00-187-0019, 6630-00-360-0022, 1610-00-483-6999 and 2 more. Verify interchangeability with system specifications before substitution.

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