PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-107Labyrinth,packing

Steward Machine Co Inc · NSN 2825-00-317-4329 · FSC 2825 · No Item Name Available
Verified by PartsTable
NSN 2825-00-317-4329 — this item is cataloged by the U.S. Government under National Stock Number 2825-00-317-4329. Primary manufacturer part number: 50-107.
Features
  • Labyrinth,packing — FSC 2825
  • General Characteristics Item Description: BRONZE,4 PIECE SEGMENTED BODY,5.125 IN. OD WHEN ASSEMBLED,3.500 IN. ID W/SIX PACKING GROOVES,1.438 IN. O/A LG IN
  • 24 verified cross-references
  • Primary manufacturer: Steward Machine Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Labyrinth,packing, cataloged under National Stock Number 2825-00-317-4329, is classified within Federal Supply Class 2825 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Steward Machine Co Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2825-00-317-4329
Primary Part Number50-107
Item NameLabyrinth,packing
FSC / FSG2825 / 28 — No Item Name Available
ManufacturerSteward Machine Co Inc
StatusCANCELLED
General Characteristics Item DescriptionBRONZE,4 PIECE SEGMENTED BODY,5.125 IN. OD WHEN ASSEMBLED,3.500 IN. ID W/SIX PACKING GROOVES,1.438 IN. O/A LG IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-139-6783C00413 INTERCHANGEABLE
Clamp,loop
Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co
5315-00-267-22629563 INTERCHANGEABLE
Pin,straight,headless
Hyster-Yale Group, Inc.
5310-00-618-047550107 INTERCHANGEABLE
Washer,flat
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
3110-00-734-8768A6294 INTERCHANGEABLE
Ball,bearing
Am General Llc
2825-00-769-7377312-117A INTERCHANGEABLE
Seal Ring Assembly,labyrinth
Steward Machine Co Inc
4030-01-070-980650107 INTERCHANGEABLE
Thimble,rope
Paccar Winch Inc Dba Paccar Winch Division
2510-01-119-7628033617 INTERCHANGEABLE
Spring Assembly,leaf
Hammerblow Corp the
2825-01-196-3940577A1 INTERCHANGEABLE
Casing,labyrinth
Steward Machine Co Inc
5310-01-257-898460577 INTERCHANGEABLE
Nut
Tld Ace Corp Div Tld Ace
2805-01-277-371760577 INTERCHANGEABLE
Mount Silencer Brac
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
60-627 Hardie-Tynes Co., Inc. (USA)
60-401PC107 Hardie-Tynes Co., Inc. (USA)
60-577 Hardie-Tynes Co., Inc. (USA)
50-107A Capitol Engine Co, Inc Dba Salmini Worldwide (USA)
60-577PC107 Hardie-Tynes Co., Inc. (USA)
60-208PC107 Hardie-Tynes Co., Inc. (USA)
50-107 Hardie-Tynes Co., Inc. (USA)
60-405-107 Hardie-Tynes Co., Inc. (USA)
577-107A Hardie-Tynes Co., Inc. (USA)
60-606-C107 Hardie-Tynes Co., Inc. (USA)
60-50-107 Hardie-Tynes Co., Inc. (USA)
50-107 PRIMARY Steward Machine Co Inc (USA)
50-107A Hardie-Tynes Co., Inc. (USA)
577-107 Hardie-Tynes Co., Inc. (USA)
60-521PC107 Hardie-Tynes Co., Inc. (USA)
60-306PC107 Hardie-Tynes Co., Inc. (USA)
F3291889PC107 Naval Ship Systems Command (USA)
60-312PC107 Hardie-Tynes Co., Inc. (USA)
60-627PC107 Hardie-Tynes Co., Inc. (USA)
L-2124 Rps-Fl, Inc. Dba Rps Inc (USA)
Related Parts
5340-00-139-6783INTERCHANGEABLE
CLAMP,LOOP
C00413
5315-00-267-2262INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
9563
5310-00-618-0475INTERCHANGEABLE
WASHER,FLAT
50107
3110-00-734-8768INTERCHANGEABLE
BALL,BEARING
A6294
2825-00-769-7377INTERCHANGEABLE
SEAL RING ASSEMBLY,LABYRINTH
312-117A
4030-01-070-9806INTERCHANGEABLE
THIMBLE,ROPE
50107
2510-01-119-7628INTERCHANGEABLE
SPRING ASSEMBLY,LEAF
033617
2825-01-196-3940INTERCHANGEABLE
CASING,LABYRINTH
577A1
5310-01-257-8984INTERCHANGEABLE
NUT
60577
2805-01-277-3717INTERCHANGEABLE
MOUNT SILENCER BRAC
60577
2835-01-292-3657INTERCHANGEABLE
BLADE SET,TURBINE,NONAIRCRAFT GA
627A2
5930-01-400-4171INTERCHANGEABLE
SWITCH,PULL
50107

Frequently Asked Questions

What is NSN 2825-00-317-4329?

NSN 2825-00-317-4329 is a Labyrinth,packing, manufactured by Steward Machine Co Inc, classified under FSC 2825 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2825-00-317-4329?

NSN 2825-00-317-4329 has 24 cross-referenced part numbers: 60-627 (Hardie-Tynes Co., Inc.), 60-401PC107 (Hardie-Tynes Co., Inc.), 60-577 (Hardie-Tynes Co., Inc.), 50-107A (Capitol Engine Co, Inc Dba Salmini Worldwide), 60-577PC107 (Hardie-Tynes Co., Inc.) and 19 more.

What NSN replaces 2825-00-317-4329?

There are 12 known substitutes for 2825-00-317-4329: 5340-00-139-6783, 5315-00-267-2262, 5310-00-618-0475 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-107?

Key specifications for 50-107: General Characteristics Item Description: BRONZE,4 PIECE SEGMENTED BODY,5.125 IN. OD WHEN ASSEMBLED,3.500 IN. ID W/SIX PACKING GROOVES,1.438 IN. O/A LG IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2825-00-317-4329 still in active supply?

NSN 2825-00-317-4329 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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